From add0c59d802e6118e51e21244c3871be35164e4b Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 9 Jul 2013 16:17:39 -0700 Subject: cgroup: remove bcache_subsys_id which got added stealthily cafe563591 ("bcache: A block layer cache") added a new cgroup subsystem bcache_subsys without proper review and ack. bcache_subsys seems to use cgroup for group stats and per-group cache_mode configuration. This is very much the type of usage that we don't want to allow. Fortunately, CONFIG_CGROUP_BCACHE which enables bcache_subsys is currently commented out, so this shouldn't have any upstream users. Let's nip in the bud. While at it, clarify in cgroup_subsys.h that no new subsystem should be added without explicit acks from cgroup maintainers. Signed-off-by: Tejun Heo Cc: Li Zefan Cc: cgroups@vger.kernel.org Cc: Kent Overstreet Cc: Jens Axboe Cc: linux-bcache@vger.kernel.org --- include/linux/cgroup_subsys.h | 45 +++++++------------------------------------ 1 file changed, 7 insertions(+), 38 deletions(-) diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h index 6e7ec64b69a..b613ffd402d 100644 --- a/include/linux/cgroup_subsys.h +++ b/include/linux/cgroup_subsys.h @@ -1,86 +1,55 @@ -/* Add subsystem definitions of the form SUBSYS() in this - * file. Surround each one by a line of comment markers so that - * patches don't collide +/* + * List of cgroup subsystems. + * + * DO NOT ADD ANY SUBSYSTEM WITHOUT EXPLICIT ACKS FROM CGROUP MAINTAINERS. */ - -/* */ - -/* */ - #if IS_SUBSYS_ENABLED(CONFIG_CPUSETS) SUBSYS(cpuset) #endif -/* */ - #if IS_SUBSYS_ENABLED(CONFIG_CGROUP_DEBUG) SUBSYS(debug) #endif -/* */ - #if IS_SUBSYS_ENABLED(CONFIG_CGROUP_SCHED) SUBSYS(cpu_cgroup) #endif -/* */ - #if IS_SUBSYS_ENABLED(CONFIG_CGROUP_CPUACCT) SUBSYS(cpuacct) #endif -/* */ - #if IS_SUBSYS_ENABLED(CONFIG_MEMCG) SUBSYS(mem_cgroup) #endif -/* */ - #if IS_SUBSYS_ENABLED(CONFIG_CGROUP_DEVICE) SUBSYS(devices) #endif -/* */ - #if IS_SUBSYS_ENABLED(CONFIG_CGROUP_FREEZER) SUBSYS(freezer) #endif -/* */ - #if IS_SUBSYS_ENABLED(CONFIG_NET_CLS_CGROUP) SUBSYS(net_cls) #endif -/* */ - #if IS_SUBSYS_ENABLED(CONFIG_BLK_CGROUP) SUBSYS(blkio) #endif -/* */ - #if IS_SUBSYS_ENABLED(CONFIG_CGROUP_PERF) SUBSYS(perf) #endif -/* */ - #if IS_SUBSYS_ENABLED(CONFIG_NETPRIO_CGROUP) SUBSYS(net_prio) #endif -/* */ - #if IS_SUBSYS_ENABLED(CONFIG_CGROUP_HUGETLB) SUBSYS(hugetlb) #endif - -/* */ - -#ifdef CONFIG_CGROUP_BCACHE -SUBSYS(bcache) -#endif - -/* */ +/* + * DO NOT ADD ANY SUBSYSTEM WITHOUT EXPLICIT ACKS FROM CGROUP MAINTAINERS. + */ -- cgit v1.2.3 From 9c23b7d3d6bda41e2a27375df705485523a96dc8 Mon Sep 17 00:00:00 2001 From: Vakul Garg Date: Wed, 10 Jul 2013 06:26:13 +0000 Subject: crypto: caam - Fixed the memory out of bound overwrite issue When kernel is compiled with CONFIG_SLUB_DEBUG=y and CRYPTO_MANAGER_DISABLE_TESTS=n, during kernel bootup, the kernel reports error given below. The root cause is that in function hash_digest_key(), for allocating descriptor, insufficient memory was being allocated. The required number of descriptor words apart from input and output pointers are 8 (instead of 6). ============================================================================= BUG dma-kmalloc-32 (Not tainted): Redzone overwritten ----------------------------------------------------------------------------- Disabling lock debugging due to kernel taint INFO: 0xdec5dec0-0xdec5dec3. First byte 0x0 instead of 0xcc INFO: Allocated in ahash_setkey+0x60/0x594 age=7 cpu=1 pid=1257 __kmalloc+0x154/0x1b4 ahash_setkey+0x60/0x594 test_hash+0x260/0x5a0 alg_test_hash+0x48/0xb0 alg_test+0x84/0x228 cryptomgr_test+0x4c/0x54 kthread+0x98/0x9c ret_from_kernel_thread+0x64/0x6c INFO: Slab 0xc0bd0ba0 objects=19 used=2 fp=0xdec5d0d0 flags=0x0081 INFO: Object 0xdec5dea0 @offset=3744 fp=0x5c200014 Bytes b4 dec5de90: 00 00 00 00 00 00 00 00 5a 5a 5a 5a 5a 5a 5a 5a ........ZZZZZZZZ Object dec5dea0: b0 80 00 0a 84 41 00 0d f0 40 00 00 00 67 3f c0 .....A...@...g?. Object dec5deb0: 00 00 00 50 2c 14 00 50 f8 40 00 00 1e c5 d0 00 ...P,..P.@...... Redzone dec5dec0: 00 00 00 14 .... Padding dec5df68: 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZ Call Trace: [dec65b60] [c00071b4] show_stack+0x4c/0x168 (unreliable) [dec65ba0] [c00d4ec8] check_bytes_and_report+0xe4/0x11c [dec65bd0] [c00d507c] check_object+0x17c/0x23c [dec65bf0] [c0550a00] free_debug_processing+0xf4/0x294 [dec65c20] [c0550bdc] __slab_free+0x3c/0x294 [dec65c80] [c03f0744] ahash_setkey+0x4e0/0x594 [dec65cd0] [c01ef138] test_hash+0x260/0x5a0 [dec65e50] [c01ef4c0] alg_test_hash+0x48/0xb0 [dec65e70] [c01eecc4] alg_test+0x84/0x228 [dec65ee0] [c01ec640] cryptomgr_test+0x4c/0x54 [dec65ef0] [c005adc0] kthread+0x98/0x9c [dec65f40] [c000e1ac] ret_from_kernel_thread+0x64/0x6c FIX dma-kmalloc-32: Restoring 0xdec5dec0-0xdec5dec3=0xcc Change-Id: I0c7a1048053e811025d1c3b487940f87345c8f5d Signed-off-by: Vakul Garg CC: #3.9 Reviewed-by: Geanta Neag Horia Ioan-B05471 Reviewed-by: Fleming Andrew-AFLEMING Tested-by: Fleming Andrew-AFLEMING Signed-off-by: Herbert Xu --- drivers/crypto/caam/caamhash.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c index 5996521a1ca..84573b4d6f9 100644 --- a/drivers/crypto/caam/caamhash.c +++ b/drivers/crypto/caam/caamhash.c @@ -429,7 +429,7 @@ static int hash_digest_key(struct caam_hash_ctx *ctx, const u8 *key_in, dma_addr_t src_dma, dst_dma; int ret = 0; - desc = kmalloc(CAAM_CMD_SZ * 6 + CAAM_PTR_SZ * 2, GFP_KERNEL | GFP_DMA); + desc = kmalloc(CAAM_CMD_SZ * 8 + CAAM_PTR_SZ * 2, GFP_KERNEL | GFP_DMA); if (!desc) { dev_err(jrdev, "unable to allocate key input memory\n"); return -ENOMEM; -- cgit v1.2.3 From 913ffdb54366f94eec65c656cae8c6e00e1ab1b0 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 11 Jul 2013 16:34:48 -0700 Subject: cgroup: replace task_cgroup_path_from_hierarchy() with task_cgroup_path() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit task_cgroup_path_from_hierarchy() was added for the planned new users and none of the currently planned users wants to know about multiple hierarchies. This patch drops the multiple hierarchy part and makes it always return the path in the first non-dummy hierarchy. As unified hierarchy will always have id 1, this is guaranteed to return the path for the unified hierarchy if mounted; otherwise, it will return the path from the hierarchy which happens to occupy the lowest hierarchy id, which will usually be the first hierarchy mounted after boot. Signed-off-by: Tejun Heo Acked-by: Li Zefan Cc: Lennart Poettering Cc: Kay Sievers Cc: Jan Kaluža --- include/linux/cgroup.h | 3 +-- kernel/cgroup.c | 31 +++++++++++++++++++------------ 2 files changed, 20 insertions(+), 14 deletions(-) diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h index fd097ecfcd9..21cfaff7e00 100644 --- a/include/linux/cgroup.h +++ b/include/linux/cgroup.h @@ -540,8 +540,7 @@ int cgroup_rm_cftypes(struct cgroup_subsys *ss, struct cftype *cfts); bool cgroup_is_descendant(struct cgroup *cgrp, struct cgroup *ancestor); int cgroup_path(const struct cgroup *cgrp, char *buf, int buflen); -int task_cgroup_path_from_hierarchy(struct task_struct *task, int hierarchy_id, - char *buf, size_t buflen); +int task_cgroup_path(struct task_struct *task, char *buf, size_t buflen); int cgroup_task_count(const struct cgroup *cgrp); diff --git a/kernel/cgroup.c b/kernel/cgroup.c index e5583d10a32..afb8d53ca6c 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -1846,36 +1846,43 @@ out: EXPORT_SYMBOL_GPL(cgroup_path); /** - * task_cgroup_path_from_hierarchy - cgroup path of a task on a hierarchy + * task_cgroup_path - cgroup path of a task in the first cgroup hierarchy * @task: target task - * @hierarchy_id: the hierarchy to look up @task's cgroup from * @buf: the buffer to write the path into * @buflen: the length of the buffer * - * Determine @task's cgroup on the hierarchy specified by @hierarchy_id and - * copy its path into @buf. This function grabs cgroup_mutex and shouldn't - * be used inside locks used by cgroup controller callbacks. + * Determine @task's cgroup on the first (the one with the lowest non-zero + * hierarchy_id) cgroup hierarchy and copy its path into @buf. This + * function grabs cgroup_mutex and shouldn't be used inside locks used by + * cgroup controller callbacks. + * + * Returns 0 on success, fails with -%ENAMETOOLONG if @buflen is too short. */ -int task_cgroup_path_from_hierarchy(struct task_struct *task, int hierarchy_id, - char *buf, size_t buflen) +int task_cgroup_path(struct task_struct *task, char *buf, size_t buflen) { struct cgroupfs_root *root; - struct cgroup *cgrp = NULL; - int ret = -ENOENT; + struct cgroup *cgrp; + int hierarchy_id = 1, ret = 0; + + if (buflen < 2) + return -ENAMETOOLONG; mutex_lock(&cgroup_mutex); - root = idr_find(&cgroup_hierarchy_idr, hierarchy_id); + root = idr_get_next(&cgroup_hierarchy_idr, &hierarchy_id); + if (root) { cgrp = task_cgroup_from_root(task, root); ret = cgroup_path(cgrp, buf, buflen); + } else { + /* if no hierarchy exists, everyone is in "/" */ + memcpy(buf, "/", 2); } mutex_unlock(&cgroup_mutex); - return ret; } -EXPORT_SYMBOL_GPL(task_cgroup_path_from_hierarchy); +EXPORT_SYMBOL_GPL(task_cgroup_path); /* * Control Group taskset -- cgit v1.2.3 From f5786b8e934e77f76f689c515baa582ff5a196ec Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Fri, 21 Jun 2013 15:36:11 +0200 Subject: ARM i.MX53: Fix UART pad configuration The current default pad configuration for UART RX and TX pads sets a 360k pull-down and writes 1 to a reserved bit (1 << 0). It doesn't seem right to me that in idle state, the UART has to keep the signal high against a pull-down resistor. This patch instead sets a 100k pull-up, which incidentally corresponds to the register reset value for all but one (MX53_PAD_KEY_ROW0__UART4_RXD_MUX) pad, and removes the write to the reserved bit. Signed-off-by: Philipp Zabel Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx53.dtsi | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/arch/arm/boot/dts/imx53.dtsi b/arch/arm/boot/dts/imx53.dtsi index 3895fbba8fc..569aa9f2c4e 100644 --- a/arch/arm/boot/dts/imx53.dtsi +++ b/arch/arm/boot/dts/imx53.dtsi @@ -725,15 +725,15 @@ uart1 { pinctrl_uart1_1: uart1grp-1 { fsl,pins = < - MX53_PAD_CSI0_DAT10__UART1_TXD_MUX 0x1c5 - MX53_PAD_CSI0_DAT11__UART1_RXD_MUX 0x1c5 + MX53_PAD_CSI0_DAT10__UART1_TXD_MUX 0x1e4 + MX53_PAD_CSI0_DAT11__UART1_RXD_MUX 0x1e4 >; }; pinctrl_uart1_2: uart1grp-2 { fsl,pins = < - MX53_PAD_PATA_DIOW__UART1_TXD_MUX 0x1c5 - MX53_PAD_PATA_DMACK__UART1_RXD_MUX 0x1c5 + MX53_PAD_PATA_DIOW__UART1_TXD_MUX 0x1e4 + MX53_PAD_PATA_DMACK__UART1_RXD_MUX 0x1e4 >; }; @@ -748,8 +748,8 @@ uart2 { pinctrl_uart2_1: uart2grp-1 { fsl,pins = < - MX53_PAD_PATA_BUFFER_EN__UART2_RXD_MUX 0x1c5 - MX53_PAD_PATA_DMARQ__UART2_TXD_MUX 0x1c5 + MX53_PAD_PATA_BUFFER_EN__UART2_RXD_MUX 0x1e4 + MX53_PAD_PATA_DMARQ__UART2_TXD_MUX 0x1e4 >; }; @@ -766,17 +766,17 @@ uart3 { pinctrl_uart3_1: uart3grp-1 { fsl,pins = < - MX53_PAD_PATA_CS_0__UART3_TXD_MUX 0x1c5 - MX53_PAD_PATA_CS_1__UART3_RXD_MUX 0x1c5 - MX53_PAD_PATA_DA_1__UART3_CTS 0x1c5 - MX53_PAD_PATA_DA_2__UART3_RTS 0x1c5 + MX53_PAD_PATA_CS_0__UART3_TXD_MUX 0x1e4 + MX53_PAD_PATA_CS_1__UART3_RXD_MUX 0x1e4 + MX53_PAD_PATA_DA_1__UART3_CTS 0x1e4 + MX53_PAD_PATA_DA_2__UART3_RTS 0x1e4 >; }; pinctrl_uart3_2: uart3grp-2 { fsl,pins = < - MX53_PAD_PATA_CS_0__UART3_TXD_MUX 0x1c5 - MX53_PAD_PATA_CS_1__UART3_RXD_MUX 0x1c5 + MX53_PAD_PATA_CS_0__UART3_TXD_MUX 0x1e4 + MX53_PAD_PATA_CS_1__UART3_RXD_MUX 0x1e4 >; }; @@ -785,8 +785,8 @@ uart4 { pinctrl_uart4_1: uart4grp-1 { fsl,pins = < - MX53_PAD_KEY_COL0__UART4_TXD_MUX 0x1c5 - MX53_PAD_KEY_ROW0__UART4_RXD_MUX 0x1c5 + MX53_PAD_KEY_COL0__UART4_TXD_MUX 0x1e4 + MX53_PAD_KEY_ROW0__UART4_RXD_MUX 0x1e4 >; }; }; @@ -794,8 +794,8 @@ uart5 { pinctrl_uart5_1: uart5grp-1 { fsl,pins = < - MX53_PAD_KEY_COL1__UART5_TXD_MUX 0x1c5 - MX53_PAD_KEY_ROW1__UART5_RXD_MUX 0x1c5 + MX53_PAD_KEY_COL1__UART5_TXD_MUX 0x1e4 + MX53_PAD_KEY_ROW1__UART5_RXD_MUX 0x1e4 >; }; }; -- cgit v1.2.3 From bf81e2f1006d10694bcb62c1a001f3a786b902ac Mon Sep 17 00:00:00 2001 From: Markus Pargmann Date: Sun, 23 Jun 2013 10:51:10 +0200 Subject: ARM: imx27: Fix documentation for SPLL clock spll_gate was added with commit b7eed2076183994dbda2c19bc7fba99b65a135e3 "ARM: imx27: add a clock gate to activate SPLL clock". spll_gate is missing in the devicetree clock documentation for imx27. This patch adds it to the list of clocks in the documentation. Signed-off-by: Markus Pargmann Signed-off-by: Shawn Guo --- Documentation/devicetree/bindings/clock/imx27-clock.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/clock/imx27-clock.txt b/Documentation/devicetree/bindings/clock/imx27-clock.txt index ab1a56e9de9..7a207039373 100644 --- a/Documentation/devicetree/bindings/clock/imx27-clock.txt +++ b/Documentation/devicetree/bindings/clock/imx27-clock.txt @@ -98,6 +98,7 @@ clocks and IDs. fpm 83 mpll_osc_sel 84 mpll_sel 85 + spll_gate 86 Examples: -- cgit v1.2.3 From 0d5ca6d973b54f76eaccf86116dd0c66b073afc5 Mon Sep 17 00:00:00 2001 From: Alexander Shiyan Date: Sun, 23 Jun 2013 17:40:35 +0400 Subject: ARM: i.MX27: Typo fix Signed-off-by: Alexander Shiyan Acked-by: Sascha Hauer Signed-off-by: Shawn Guo --- arch/arm/mach-imx/mx27.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-imx/mx27.h b/arch/arm/mach-imx/mx27.h index e074616d54c..8a65f192e7f 100644 --- a/arch/arm/mach-imx/mx27.h +++ b/arch/arm/mach-imx/mx27.h @@ -135,7 +135,7 @@ #define MX27_INT_GPT4 (NR_IRQS_LEGACY + 4) #define MX27_INT_RTIC (NR_IRQS_LEGACY + 5) #define MX27_INT_CSPI3 (NR_IRQS_LEGACY + 6) -#define MX27_INT_SDHC (NR_IRQS_LEGACY + 7) +#define MX27_INT_MSHC (NR_IRQS_LEGACY + 7) #define MX27_INT_GPIO (NR_IRQS_LEGACY + 8) #define MX27_INT_SDHC3 (NR_IRQS_LEGACY + 9) #define MX27_INT_SDHC2 (NR_IRQS_LEGACY + 10) -- cgit v1.2.3 From ceac9b9214df539ca814a784c2af94f554bc78d4 Mon Sep 17 00:00:00 2001 From: Philipp Zabel Date: Wed, 26 Jun 2013 15:08:48 +0200 Subject: ARM i.MX6Q: Fix IOMUXC GPR1 defines for ENET_CLK_SEL and IPU1/2_MUX Signed-off-by: Philipp Zabel Signed-off-by: Shawn Guo --- include/linux/mfd/syscon/imx6q-iomuxc-gpr.h | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h index dab34a1deb2..b1521e82fec 100644 --- a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h +++ b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h @@ -103,15 +103,15 @@ #define IMX6Q_GPR1_EXC_MON_MASK BIT(22) #define IMX6Q_GPR1_EXC_MON_OKAY 0x0 #define IMX6Q_GPR1_EXC_MON_SLVE BIT(22) -#define IMX6Q_GPR1_MIPI_IPU2_SEL_MASK BIT(21) -#define IMX6Q_GPR1_MIPI_IPU2_SEL_GASKET 0x0 -#define IMX6Q_GPR1_MIPI_IPU2_SEL_IOMUX BIT(21) -#define IMX6Q_GPR1_MIPI_IPU1_MUX_MASK BIT(20) -#define IMX6Q_GPR1_MIPI_IPU1_MUX_GASKET 0x0 -#define IMX6Q_GPR1_MIPI_IPU1_MUX_IOMUX BIT(20) -#define IMX6Q_GPR1_MIPI_IPU2_MUX_MASK BIT(19) +#define IMX6Q_GPR1_ENET_CLK_SEL_MASK BIT(21) +#define IMX6Q_GPR1_ENET_CLK_SEL_PAD 0 +#define IMX6Q_GPR1_ENET_CLK_SEL_ANATOP BIT(21) +#define IMX6Q_GPR1_MIPI_IPU2_MUX_MASK BIT(20) #define IMX6Q_GPR1_MIPI_IPU2_MUX_GASKET 0x0 -#define IMX6Q_GPR1_MIPI_IPU2_MUX_IOMUX BIT(19) +#define IMX6Q_GPR1_MIPI_IPU2_MUX_IOMUX BIT(20) +#define IMX6Q_GPR1_MIPI_IPU1_MUX_MASK BIT(19) +#define IMX6Q_GPR1_MIPI_IPU1_MUX_GASKET 0x0 +#define IMX6Q_GPR1_MIPI_IPU1_MUX_IOMUX BIT(19) #define IMX6Q_GPR1_PCIE_TEST_PD BIT(18) #define IMX6Q_GPR1_IPU_VPU_MUX_MASK BIT(17) #define IMX6Q_GPR1_IPU_VPU_MUX_IPU1 0x0 -- cgit v1.2.3 From 3b79cd15bfc5f1ddb5e387310fa3dbb09b81b552 Mon Sep 17 00:00:00 2001 From: Liu Ying Date: Wed, 3 Jul 2013 15:29:06 +0800 Subject: ARM: i.MX6Q: correct emi_sel clock muxing The correct muxing for emi_sel clock should be 2b'00 - 396M PFD 2b'01 - PLL3 2b'10 - AXI clk root 2b'11 - 352M PFD This patch corrects the muxing in the clock driver. Signed-off-by: Liu Ying Signed-off-by: Shawn Guo Acked-by: Dirk Behme --- arch/arm/mach-imx/clk-imx6q.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c index 4282e99f5ca..86567d980b0 100644 --- a/arch/arm/mach-imx/clk-imx6q.c +++ b/arch/arm/mach-imx/clk-imx6q.c @@ -199,7 +199,8 @@ static const char *pcie_axi_sels[] = { "axi", "ahb", }; static const char *ssi_sels[] = { "pll3_pfd2_508m", "pll3_pfd3_454m", "pll4_post_div", }; static const char *usdhc_sels[] = { "pll2_pfd2_396m", "pll2_pfd0_352m", }; static const char *enfc_sels[] = { "pll2_pfd0_352m", "pll2_bus", "pll3_usb_otg", "pll2_pfd2_396m", }; -static const char *emi_sels[] = { "axi", "pll3_usb_otg", "pll2_pfd2_396m", "pll2_pfd0_352m", }; +static const char *emi_sels[] = { "pll2_pfd2_396m", "pll3_usb_otg", "axi", "pll2_pfd0_352m", }; +static const char *emi_slow_sels[] = { "axi", "pll3_usb_otg", "pll2_pfd2_396m", "pll2_pfd0_352m", }; static const char *vdo_axi_sels[] = { "axi", "ahb", }; static const char *vpu_axi_sels[] = { "axi", "pll2_pfd2_396m", "pll2_pfd0_352m", }; static const char *cko1_sels[] = { "pll3_usb_otg", "pll2_bus", "pll1_sys", "pll5_video_div", @@ -392,7 +393,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node) clk[usdhc4_sel] = imx_clk_mux("usdhc4_sel", base + 0x1c, 19, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels)); clk[enfc_sel] = imx_clk_mux("enfc_sel", base + 0x2c, 16, 2, enfc_sels, ARRAY_SIZE(enfc_sels)); clk[emi_sel] = imx_clk_mux("emi_sel", base + 0x1c, 27, 2, emi_sels, ARRAY_SIZE(emi_sels)); - clk[emi_slow_sel] = imx_clk_mux("emi_slow_sel", base + 0x1c, 29, 2, emi_sels, ARRAY_SIZE(emi_sels)); + clk[emi_slow_sel] = imx_clk_mux("emi_slow_sel", base + 0x1c, 29, 2, emi_slow_sels, ARRAY_SIZE(emi_slow_sels)); clk[vdo_axi_sel] = imx_clk_mux("vdo_axi_sel", base + 0x18, 11, 1, vdo_axi_sels, ARRAY_SIZE(vdo_axi_sels)); clk[vpu_axi_sel] = imx_clk_mux("vpu_axi_sel", base + 0x18, 14, 2, vpu_axi_sels, ARRAY_SIZE(vpu_axi_sels)); clk[cko1_sel] = imx_clk_mux("cko1_sel", base + 0x60, 0, 4, cko1_sels, ARRAY_SIZE(cko1_sels)); -- cgit v1.2.3 From 66acaf3f897c9245f5456d884e5ae401700cbc45 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Mon, 1 Jul 2013 15:46:05 +0800 Subject: ARM: mxs: saif0 is the clock provider to sgtl5000 These systems all use saif0 as the mclock provider to codec sgtl5000. Reflect that in device tree source, so that sgtl5000 can find the clock by calling clk_get(). Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx28-apx4devkit.dts | 2 +- arch/arm/boot/dts/imx28-evk.dts | 2 +- arch/arm/boot/dts/imx28-m28evk.dts | 2 +- arch/arm/boot/dts/imx28.dtsi | 1 + 4 files changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/arm/boot/dts/imx28-apx4devkit.dts b/arch/arm/boot/dts/imx28-apx4devkit.dts index 43bf3c796cb..0e7fed47bd8 100644 --- a/arch/arm/boot/dts/imx28-apx4devkit.dts +++ b/arch/arm/boot/dts/imx28-apx4devkit.dts @@ -147,7 +147,7 @@ reg = <0x0a>; VDDA-supply = <®_3p3v>; VDDIO-supply = <®_3p3v>; - + clocks = <&saif0>; }; pcf8563: rtc@51 { diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts index 1f0d38d7b16..e035f4664b9 100644 --- a/arch/arm/boot/dts/imx28-evk.dts +++ b/arch/arm/boot/dts/imx28-evk.dts @@ -195,7 +195,7 @@ reg = <0x0a>; VDDA-supply = <®_3p3v>; VDDIO-supply = <®_3p3v>; - + clocks = <&saif0>; }; at24@51 { diff --git a/arch/arm/boot/dts/imx28-m28evk.dts b/arch/arm/boot/dts/imx28-m28evk.dts index 880df2f13be..44d9da57736 100644 --- a/arch/arm/boot/dts/imx28-m28evk.dts +++ b/arch/arm/boot/dts/imx28-m28evk.dts @@ -184,7 +184,7 @@ reg = <0x0a>; VDDA-supply = <®_3p3v>; VDDIO-supply = <®_3p3v>; - + clocks = <&saif0>; }; eeprom: eeprom@51 { diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi index 6a8acb01b1d..9524a057128 100644 --- a/arch/arm/boot/dts/imx28.dtsi +++ b/arch/arm/boot/dts/imx28.dtsi @@ -837,6 +837,7 @@ compatible = "fsl,imx28-saif"; reg = <0x80042000 0x2000>; interrupts = <59 80>; + #clock-cells = <0>; clocks = <&clks 53>; dmas = <&dma_apbx 4>; dma-names = "rx-tx"; -- cgit v1.2.3 From 4f71612ee3a1b2d15c8246d926a40c4f7d21cc3b Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Wed, 10 Jul 2013 14:05:44 +0800 Subject: ARM: imx: fix vf610 enet module clock selection The fec/enet driver calculates MDC rate with the formula below. ref_freq / ((MII_SPEED + 1) x 2) The ref_freq here is the fec internal module clock, which is missing from clk-vf610 clock driver right now. And clk-vf610 driver mistakenly supplies RMII clock (50 MHz) as the source to fec. This results in the situation that fec driver gets ref_freq as 50 MHz, while physically it runs at 66 MHz (fec module clock physically sources from ipg which runs at 66 MHz). That's why software expects MDC runs at 2.5 MHz, while the measurement tells it runs at 3.3 MHz. And this causes the PHY KSZ8041 keeps swithing between Full and Half mode as below. libphy: 400d0000.etherne:00 - Link is Up - 100/Full libphy: 400d0000.etherne:00 - Link is Up - 100/Half libphy: 400d0000.etherne:00 - Link is Up - 100/Full libphy: 400d0000.etherne:00 - Link is Up - 100/Half libphy: 400d0000.etherne:00 - Link is Up - 100/Full libphy: 400d0000.etherne:00 - Link is Up - 100/Half Add the missing module clock for ENET0 and ENET1, and correct the clock supplying in device tree to fix above issue. Thanks to Alison Wang for debugging the issue. Signed-off-by: Shawn Guo --- arch/arm/boot/dts/vf610.dtsi | 8 ++++---- arch/arm/mach-imx/clk-vf610.c | 2 ++ include/dt-bindings/clock/vf610-clock.h | 4 +++- 3 files changed, 9 insertions(+), 5 deletions(-) diff --git a/arch/arm/boot/dts/vf610.dtsi b/arch/arm/boot/dts/vf610.dtsi index e1eb7dadda8..67d929cf980 100644 --- a/arch/arm/boot/dts/vf610.dtsi +++ b/arch/arm/boot/dts/vf610.dtsi @@ -442,8 +442,8 @@ compatible = "fsl,mvf600-fec"; reg = <0x400d0000 0x1000>; interrupts = <0 78 0x04>; - clocks = <&clks VF610_CLK_ENET>, - <&clks VF610_CLK_ENET>, + clocks = <&clks VF610_CLK_ENET0>, + <&clks VF610_CLK_ENET0>, <&clks VF610_CLK_ENET>; clock-names = "ipg", "ahb", "ptp"; status = "disabled"; @@ -453,8 +453,8 @@ compatible = "fsl,mvf600-fec"; reg = <0x400d1000 0x1000>; interrupts = <0 79 0x04>; - clocks = <&clks VF610_CLK_ENET>, - <&clks VF610_CLK_ENET>, + clocks = <&clks VF610_CLK_ENET1>, + <&clks VF610_CLK_ENET1>, <&clks VF610_CLK_ENET>; clock-names = "ipg", "ahb", "ptp"; status = "disabled"; diff --git a/arch/arm/mach-imx/clk-vf610.c b/arch/arm/mach-imx/clk-vf610.c index d617c0b7c80..b169a396d93 100644 --- a/arch/arm/mach-imx/clk-vf610.c +++ b/arch/arm/mach-imx/clk-vf610.c @@ -183,6 +183,8 @@ static void __init vf610_clocks_init(struct device_node *ccm_node) clk[VF610_CLK_ENET_TS_SEL] = imx_clk_mux("enet_ts_sel", CCM_CSCMR2, 0, 3, enet_ts_sels, 7); clk[VF610_CLK_ENET] = imx_clk_gate("enet", "enet_sel", CCM_CSCDR1, 24); clk[VF610_CLK_ENET_TS] = imx_clk_gate("enet_ts", "enet_ts_sel", CCM_CSCDR1, 23); + clk[VF610_CLK_ENET0] = imx_clk_gate2("enet0", "ipg_bus", CCM_CCGR9, CCM_CCGRx_CGn(0)); + clk[VF610_CLK_ENET1] = imx_clk_gate2("enet1", "ipg_bus", CCM_CCGR9, CCM_CCGRx_CGn(1)); clk[VF610_CLK_PIT] = imx_clk_gate2("pit", "ipg_bus", CCM_CCGR1, CCM_CCGRx_CGn(7)); diff --git a/include/dt-bindings/clock/vf610-clock.h b/include/dt-bindings/clock/vf610-clock.h index 15e997fa78f..4aa2b48cd15 100644 --- a/include/dt-bindings/clock/vf610-clock.h +++ b/include/dt-bindings/clock/vf610-clock.h @@ -158,6 +158,8 @@ #define VF610_CLK_GPU_SEL 145 #define VF610_CLK_GPU_EN 146 #define VF610_CLK_GPU2D 147 -#define VF610_CLK_END 148 +#define VF610_CLK_ENET0 148 +#define VF610_CLK_ENET1 149 +#define VF610_CLK_END 150 #endif /* __DT_BINDINGS_CLOCK_VF610_H */ -- cgit v1.2.3 From 15968f1bd4341cfa54023348a4e0b94798211742 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Thu, 11 Jul 2013 16:37:47 +0200 Subject: ARM i.MX53: mba53: Fix PWM backlight DT node The i.MX53 PWM controller uses two cells to describe the PWM specifier. Remove the extra unused values from the backlight DT node pwms property. Signed-off-by: Laurent Pinchart Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx53-mba53.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx53-mba53.dts b/arch/arm/boot/dts/imx53-mba53.dts index aaa33bc99f7..a6309026794 100644 --- a/arch/arm/boot/dts/imx53-mba53.dts +++ b/arch/arm/boot/dts/imx53-mba53.dts @@ -27,7 +27,7 @@ backlight { compatible = "pwm-backlight"; - pwms = <&pwm2 0 50000 0 0>; + pwms = <&pwm2 0 50000>; brightness-levels = <0 24 28 32 36 40 44 48 52 56 60 64 68 72 76 80 84 88 92 96 100>; default-brightness-level = <10>; enable-gpios = <&gpio7 7 0>; -- cgit v1.2.3 From ae7cc03e435fe86d95a3fbef52161dbd9f97db77 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Mon, 15 Jul 2013 00:39:41 -0700 Subject: ARM: multi_v7: Enabled omap4430 sdp nfsroot By adding support for OCP2SCP, SPI and KS8851 I can also boot test multi_v7_defconfig easily. Note that if using an older u-boot, CONFIG_ARM_ATAG_DTB_COMPAT=y may also be needed for the appended DTB based booting. Reviewed-by: Felipe Balbi Signed-off-by: Tony Lindgren --- arch/arm/configs/multi_v7_defconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig index fe0bdc361d2..120b08edb9a 100644 --- a/arch/arm/configs/multi_v7_defconfig +++ b/arch/arm/configs/multi_v7_defconfig @@ -53,6 +53,7 @@ CONFIG_IP_PNP=y CONFIG_IP_PNP_DHCP=y CONFIG_DEVTMPFS=y CONFIG_DEVTMPFS_MOUNT=y +CONFIG_OMAP_OCP2SCP=y CONFIG_BLK_DEV_SD=y CONFIG_ATA=y CONFIG_SATA_AHCI_PLATFORM=y @@ -61,6 +62,7 @@ CONFIG_SATA_MV=y CONFIG_NETDEVICES=y CONFIG_SUN4I_EMAC=y CONFIG_NET_CALXEDA_XGMAC=y +CONFIG_KS8851=y CONFIG_SMSC911X=y CONFIG_STMMAC_ETH=y CONFIG_MDIO_SUN4I=y @@ -89,6 +91,7 @@ CONFIG_I2C_DESIGNWARE_PLATFORM=y CONFIG_I2C_SIRF=y CONFIG_I2C_TEGRA=y CONFIG_SPI=y +CONFIG_SPI_OMAP24XX=y CONFIG_SPI_PL022=y CONFIG_SPI_SIRF=y CONFIG_SPI_TEGRA114=y -- cgit v1.2.3 From 13782a7e2821f62efc747fd26605de4dc823ee29 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Fri, 7 Jun 2013 15:01:58 -0700 Subject: ARM: dts: Add missing vmmc2 regulator for twl For some reason vmmc2 regulator is missing for twl. Let's add it. Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/twl4030.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/boot/dts/twl4030.dtsi b/arch/arm/boot/dts/twl4030.dtsi index b3034da00a3..ae6a17aed9e 100644 --- a/arch/arm/boot/dts/twl4030.dtsi +++ b/arch/arm/boot/dts/twl4030.dtsi @@ -47,6 +47,12 @@ regulator-max-microvolt = <3150000>; }; + vmmc2: regulator-vmmc2 { + compatible = "ti,twl4030-vmmc2"; + regulator-min-microvolt = <1850000>; + regulator-max-microvolt = <3150000>; + }; + vusb1v5: regulator-vusb1v5 { compatible = "ti,twl4030-vusb1v5"; }; -- cgit v1.2.3 From cdcedd6981194e511cc206887db661d016069d68 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Mon, 15 Jul 2013 12:36:35 +0300 Subject: usb: dwc3: gadget: don't prevent gadget from being probed if we fail In case we fail our ->udc_start() callback, we should be ready to accept another modprobe following the failed one. We had forgotten to clear dwc->gadget_driver back to NULL and, because of that, we were preventing gadget driver modprobe from being retried. Cc: Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/gadget.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index b5e5b35df49..f77083fedc6 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1584,6 +1584,7 @@ err1: __dwc3_gadget_ep_disable(dwc->eps[0]); err0: + dwc->gadget_driver = NULL; spin_unlock_irqrestore(&dwc->lock, flags); return ret; -- cgit v1.2.3 From ae40d64b1f2db93d7b092e6425a2f716289fbd09 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 19 Jun 2013 13:27:27 +0200 Subject: usb: gadget: at91_udc: call at91udc_of_init only when needed This avoids a build error in at91sam9261_9g10_defconfig: drivers/usb/gadget/at91_udc.c: In function 'at91udc_probe': drivers/usb/gadget/at91_udc.c:1685:34: warning: 'flags' may be used uninitialized in this function [-Wmaybe-uninitialized] board->vbus_active_low = (flags & OF_GPIO_ACTIVE_LOW) ? 1 : 0; ^ drivers/usb/gadget/at91_udc.c:1678:21: note: 'flags' was declared here enum of_gpio_flags flags; ^ Making the call to at91udc_of_init conditinal also reduces the object code size without sacrificing build coverage. Signed-off-by: Arnd Bergmann Cc: Felipe Balbi Cc: Nicolas Ferre Signed-off-by: Felipe Balbi --- drivers/usb/gadget/at91_udc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index 073b938f913..2cbab1c9ff5 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -1725,7 +1725,7 @@ static int at91udc_probe(struct platform_device *pdev) /* init software state */ udc = &controller; udc->gadget.dev.parent = dev; - if (pdev->dev.of_node) + if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) at91udc_of_init(udc, pdev->dev.of_node); else memcpy(&udc->board, dev->platform_data, -- cgit v1.2.3 From 88ae742347831c47846ca7343e786abd6635752b Mon Sep 17 00:00:00 2001 From: Yuan-Hsin Chen Date: Fri, 21 Jun 2013 14:50:47 +0000 Subject: usb: gadget: fotg210-udc: remove __init and __exit Remove __init and __exit from probe() and remove() and would also fix the section mismatch issue. Signed-off-by: Yuan-Hsin Chen Signed-off-by: Felipe Balbi --- drivers/usb/gadget/fotg210-udc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/gadget/fotg210-udc.c b/drivers/usb/gadget/fotg210-udc.c index cce5535b1dc..10cd18ddd0d 100644 --- a/drivers/usb/gadget/fotg210-udc.c +++ b/drivers/usb/gadget/fotg210-udc.c @@ -1074,7 +1074,7 @@ static struct usb_gadget_ops fotg210_gadget_ops = { .udc_stop = fotg210_udc_stop, }; -static int __exit fotg210_udc_remove(struct platform_device *pdev) +static int fotg210_udc_remove(struct platform_device *pdev) { struct fotg210_udc *fotg210 = dev_get_drvdata(&pdev->dev); @@ -1088,7 +1088,7 @@ static int __exit fotg210_udc_remove(struct platform_device *pdev) return 0; } -static int __init fotg210_udc_probe(struct platform_device *pdev) +static int fotg210_udc_probe(struct platform_device *pdev) { struct resource *res, *ires; struct fotg210_udc *fotg210 = NULL; -- cgit v1.2.3 From 7628083227b6bc4a7e33d7c381d7a4e558424b6b Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Tue, 25 Jun 2013 10:12:56 +0200 Subject: usb: gadget: at91_udc: prepare clk before calling enable Replace clk_enable/disable with clk_prepare_enable/disable_unprepare to avoid common clk framework warnings. Signed-off-by: Boris BREZILLON Signed-off-by: Felipe Balbi --- drivers/usb/gadget/at91_udc.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index 2cbab1c9ff5..d9a6add0c85 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -870,8 +870,8 @@ static void clk_on(struct at91_udc *udc) if (udc->clocked) return; udc->clocked = 1; - clk_enable(udc->iclk); - clk_enable(udc->fclk); + clk_prepare_enable(udc->iclk); + clk_prepare_enable(udc->fclk); } static void clk_off(struct at91_udc *udc) @@ -880,8 +880,8 @@ static void clk_off(struct at91_udc *udc) return; udc->clocked = 0; udc->gadget.speed = USB_SPEED_UNKNOWN; - clk_disable(udc->fclk); - clk_disable(udc->iclk); + clk_disable_unprepare(udc->fclk); + clk_disable_unprepare(udc->iclk); } /* @@ -1782,12 +1782,14 @@ static int at91udc_probe(struct platform_device *pdev) } /* don't do anything until we have both gadget driver and VBUS */ - clk_enable(udc->iclk); + retval = clk_prepare_enable(udc->iclk); + if (retval) + goto fail1; at91_udp_write(udc, AT91_UDP_TXVC, AT91_UDP_TXVC_TXVDIS); at91_udp_write(udc, AT91_UDP_IDR, 0xffffffff); /* Clear all pending interrupts - UDP may be used by bootloader. */ at91_udp_write(udc, AT91_UDP_ICR, 0xffffffff); - clk_disable(udc->iclk); + clk_disable_unprepare(udc->iclk); /* request UDC and maybe VBUS irqs */ udc->udp_irq = platform_get_irq(pdev, 0); -- cgit v1.2.3 From 1974d494dea05ea227cb42f5e918828801e237aa Mon Sep 17 00:00:00 2001 From: Huang Rui Date: Thu, 27 Jun 2013 01:08:11 +0800 Subject: usb: dwc3: fix wrong bit mask in dwc3_event_type Per dwc3 2.50a spec, the is_devspec bit is used to distinguish the Device Endpoint-Specific Event or Device-Specific Event (DEVT). If the bit is 1, the event is represented Device-Specific Event, then use [7:1] bits as Device Specific Event to marked the type. It has 7 bits, and we can see the reserved8_31 variable name which means from 8 to 31 bits marked reserved, actually there are 24 bits not 25 bits between that. And 1 + 7 + 24 = 32, the event size is 4 byes. So in dwc3_event_type, the bit mask should be: is_devspec [0] 1 bit type [7:1] 7 bits reserved8_31 [31:8] 24 bits This patch should be backported to kernels as old as 3.2, that contain the commit 72246da40f3719af3bfd104a2365b32537c27d83 "usb: Introduce DesignWare USB3 DRD Driver". Cc: Signed-off-by: Huang Rui Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/core.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index b69d322e3ca..27dad993b00 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -759,8 +759,8 @@ struct dwc3 { struct dwc3_event_type { u32 is_devspec:1; - u32 type:6; - u32 reserved8_31:25; + u32 type:7; + u32 reserved8_31:24; } __packed; #define DWC3_DEPEVT_XFERCOMPLETE 0x01 -- cgit v1.2.3 From 315955d707b50c8aad20a32ec0dd4c9fe243cabe Mon Sep 17 00:00:00 2001 From: Ruchika Kharwar Date: Thu, 4 Jul 2013 00:59:34 -0500 Subject: usb: dwc3: fix the error returned with usb3_phy failure When there is an error with the usb3_phy probe or absence, the error returned is erroneously for usb2_phy. Cc: Signed-off-by: Ruchika Kharwar Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index c35d49d39b7..358375e0b29 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -450,7 +450,7 @@ static int dwc3_probe(struct platform_device *pdev) } if (IS_ERR(dwc->usb3_phy)) { - ret = PTR_ERR(dwc->usb2_phy); + ret = PTR_ERR(dwc->usb3_phy); /* * if -ENXIO is returned, it means PHY layer wasn't -- cgit v1.2.3 From 5257a6332e9d02ed7a94381f553b9c05437baa5d Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Thu, 4 Jul 2013 21:45:02 +0800 Subject: usb: gadget: mv_u3d_core: fix to pass correct device identity to free_irq() free_irq() expects the same device identity that was passed to corresponding request_irq(), otherwise the IRQ is not freed. Signed-off-by: Wei Yongjun Signed-off-by: Felipe Balbi --- drivers/usb/gadget/mv_u3d_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/gadget/mv_u3d_core.c b/drivers/usb/gadget/mv_u3d_core.c index 07fdb3eaf48..ec6a2d29039 100644 --- a/drivers/usb/gadget/mv_u3d_core.c +++ b/drivers/usb/gadget/mv_u3d_core.c @@ -1776,7 +1776,7 @@ static int mv_u3d_remove(struct platform_device *dev) kfree(u3d->eps); if (u3d->irq) - free_irq(u3d->irq, &dev->dev); + free_irq(u3d->irq, u3d); if (u3d->cap_regs) iounmap(u3d->cap_regs); @@ -1974,7 +1974,7 @@ static int mv_u3d_probe(struct platform_device *dev) return 0; err_unregister: - free_irq(u3d->irq, &dev->dev); + free_irq(u3d->irq, u3d); err_request_irq: err_get_irq: kfree(u3d->status_req); -- cgit v1.2.3 From 8047806e64ea7b33fcede5b93f7276568a6119e8 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Mon, 8 Jul 2013 22:47:37 -0700 Subject: usb: renesas_usbhs: gadget: remove extra check on udc_stop usb_gadget_ops :: udc_stop might be called with driver = NULL since 511f3c5326eabe1ece35202a404c24c0aeacc246 (usb: gadget: udc-core: fix a regression during gadget driver unbinding) Because of that, 2nd times insmod goes fail. This patch fixes it up. Reported-by: Yusuke Goda Signed-off-by: Kuninori Morimoto Signed-off-by: Felipe Balbi --- drivers/usb/renesas_usbhs/mod_gadget.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c index ed4949faa70..805940c3735 100644 --- a/drivers/usb/renesas_usbhs/mod_gadget.c +++ b/drivers/usb/renesas_usbhs/mod_gadget.c @@ -855,10 +855,6 @@ static int usbhsg_gadget_stop(struct usb_gadget *gadget, struct usbhsg_gpriv *gpriv = usbhsg_gadget_to_gpriv(gadget); struct usbhs_priv *priv = usbhsg_gpriv_to_priv(gpriv); - if (!driver || - !driver->unbind) - return -EINVAL; - usbhsg_try_stop(priv, USBHSG_STATUS_REGISTERD); gpriv->driver = NULL; -- cgit v1.2.3 From 9d140f796f76d6a11fd27f07838285096e09b63b Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Tue, 9 Jul 2013 08:14:39 +0200 Subject: usb: gadget: Kconfig: Fix configfs-based RNDIS function build USB_CONFIGFS_RNDIS depends on USB_U_RNDIS. Select it. Acked-by: Michal Nazarewicz Reported-by: Fengguang Wu Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Signed-off-by: Felipe Balbi --- drivers/usb/gadget/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 62f6802f6e0..5fce99a5d99 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -639,6 +639,7 @@ config USB_CONFIGFS_RNDIS depends on USB_CONFIGFS depends on NET select USB_U_ETHER + select USB_U_RNDIS select USB_F_RNDIS help Microsoft Windows XP bundles the "Remote NDIS" (RNDIS) protocol, -- cgit v1.2.3 From 8744303eef570b4adc19a406b11418d21baa1c3c Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 11 Jul 2013 15:54:00 +0200 Subject: usb: dwc3: USB_DWC3 should depend on HAS_DMA If NO_DMA=y: drivers/built-in.o: In function `dwc3_free_one_event_buffer': drivers/usb/dwc3/core.c:132: undefined reference to `dma_free_coherent' drivers/built-in.o: In function `dwc3_alloc_one_event_buffer': drivers/usb/dwc3/core.c:154: undefined reference to `dma_alloc_coherent' drivers/built-in.o: In function `dma_set_coherent_mask': include/linux/dma-mapping.h:93: undefined reference to `dma_supported' drivers/built-in.o: In function `dwc3_free_trb_pool': drivers/usb/dwc3/gadget.c:407: undefined reference to `dma_free_coherent' drivers/built-in.o: In function `dwc3_gadget_exit': drivers/usb/dwc3/gadget.c:2693: undefined reference to `dma_free_coherent' drivers/built-in.o: In function `dwc3_alloc_trb_pool': drivers/usb/dwc3/gadget.c:391: undefined reference to `dma_alloc_coherent' drivers/built-in.o: In function `dwc3_gadget_init': drivers/usb/dwc3/gadget.c:2598: undefined reference to `dma_alloc_coherent' drivers/usb/dwc3/gadget.c:2667: undefined reference to `dma_free_coherent' drivers/usb/dwc3/gadget.c:2674: undefined reference to `dma_free_coherent' drivers/usb/dwc3/gadget.c:2678: undefined reference to `dma_free_coherent' Signed-off-by: Geert Uytterhoeven Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index 757aa18027d..2378958ea63 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -1,6 +1,6 @@ config USB_DWC3 tristate "DesignWare USB3 DRD Core Support" - depends on (USB || USB_GADGET) && GENERIC_HARDIRQS + depends on (USB || USB_GADGET) && GENERIC_HARDIRQS && HAS_DMA select USB_XHCI_PLATFORM if USB_SUPPORT && USB_XHCI_HCD help Say Y or M here if your system has a Dual Role SuperSpeed -- cgit v1.2.3 From 4713aec180b666a78bc658490870b61f6846d8a6 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 11 Jul 2013 15:54:02 +0200 Subject: usb: gadget: USB_MV_UDC should depend on HAS_DMA If NO_DMA=y: drivers/built-in.o: In function `done': drivers/usb/gadget/mv_udc_core.c:239: undefined reference to `dma_pool_free' drivers/built-in.o: In function `build_dtd': drivers/usb/gadget/mv_udc_core.c:371: undefined reference to `dma_pool_alloc' drivers/built-in.o: In function `udc_prime_status': drivers/usb/gadget/mv_udc_core.c:1465: undefined reference to `dma_map_single' drivers/built-in.o: In function `mv_udc_remove': drivers/usb/gadget/mv_udc_core.c:2087: undefined reference to `dma_pool_destroy' drivers/usb/gadget/mv_udc_core.c:2090: undefined reference to `dma_free_coherent' drivers/built-in.o: In function `mv_udc_probe': drivers/usb/gadget/mv_udc_core.c:2190: undefined reference to `dma_alloc_coherent' drivers/usb/gadget/mv_udc_core.c:2201: undefined reference to `dma_pool_create' drivers/usb/gadget/mv_udc_core.c:2315: undefined reference to `dma_pool_destroy' drivers/usb/gadget/mv_udc_core.c:2317: undefined reference to `dma_free_coherent' Signed-off-by: Geert Uytterhoeven Signed-off-by: Felipe Balbi --- drivers/usb/gadget/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 5fce99a5d99..1fd0e17d370 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -328,7 +328,7 @@ config USB_S3C_HSUDC config USB_MV_UDC tristate "Marvell USB2.0 Device Controller" - depends on GENERIC_HARDIRQS + depends on GENERIC_HARDIRQS && HAS_DMA help Marvell Socs (including PXA and MMP series) include a high speed USB2.0 OTG controller, which can be configured as high speed or -- cgit v1.2.3 From bfcbd020396202e7795d78f8d87845e4e225c3b1 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 11 Jul 2013 15:54:03 +0200 Subject: usb: gadget: USB_FOTG210_UDC should depend on HAS_DMA If NO_DMA=y: drivers/built-in.o: In function `fotg210_start_dma': drivers/usb/gadget/fotg210-udc.c:354: undefined reference to `dma_map_single' drivers/usb/gadget/fotg210-udc.c:357: undefined reference to `dma_mapping_error' drivers/usb/gadget/fotg210-udc.c:362: undefined reference to `dma_sync_single_for_cpu' drivers/usb/gadget/fotg210-udc.c:376: undefined reference to `dma_unmap_single' Signed-off-by: Geert Uytterhoeven Signed-off-by: Felipe Balbi --- drivers/usb/gadget/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 1fd0e17d370..2c4e978cef0 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -193,6 +193,7 @@ config USB_FUSB300 Faraday usb device controller FUSB300 driver config USB_FOTG210_UDC + depends on HAS_DMA tristate "Faraday FOTG210 USB Peripheral Controller" help Faraday USB2.0 OTG controller which can be configured as -- cgit v1.2.3 From 91f6b84739e29069670f54651340d2c20e4e7399 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 11 Jul 2013 15:54:04 +0200 Subject: usb: gadget: USB_MV_U3D should depend on HAS_DMA If NO_DMA=y: drivers/built-in.o: In function `mv_u3d_done': drivers/usb/gadget/mv_u3d_core.c:206: undefined reference to `dma_pool_free' drivers/usb/gadget/mv_u3d_core.c:209: undefined reference to `dma_unmap_single' drivers/built-in.o: In function `mv_u3d_build_trb_one': drivers/usb/gadget/mv_u3d_core.c:311: undefined reference to `dma_pool_alloc' drivers/built-in.o: In function `mv_u3d_req_to_trb': drivers/usb/gadget/mv_u3d_core.c:480: undefined reference to `dma_map_single' drivers/built-in.o: In function `mv_u3d_remove': drivers/usb/gadget/mv_u3d_core.c:1770: undefined reference to `dma_pool_destroy' drivers/usb/gadget/mv_u3d_core.c:1773: undefined reference to `dma_free_coherent' drivers/built-in.o: In function `mv_u3d_probe': drivers/usb/gadget/mv_u3d_core.c:1880: undefined reference to `dma_alloc_coherent' drivers/usb/gadget/mv_u3d_core.c:1890: undefined reference to `dma_pool_create' drivers/usb/gadget/mv_u3d_core.c:1984: undefined reference to `dma_pool_destroy' drivers/usb/gadget/mv_u3d_core.c:1986: undefined reference to `dma_free_coherent' Signed-off-by: Geert Uytterhoeven Signed-off-by: Felipe Balbi --- drivers/usb/gadget/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index 2c4e978cef0..8e9368330b1 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -336,6 +336,7 @@ config USB_MV_UDC full speed USB peripheral. config USB_MV_U3D + depends on HAS_DMA tristate "MARVELL PXA2128 USB 3.0 controller" help MARVELL PXA2128 Processor series include a super speed USB3.0 device -- cgit v1.2.3 From 908b961326b2ecfbf494c9b2f206847d925f269d Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Fri, 12 Jul 2013 11:06:21 -0400 Subject: usb: gadget: don't fail when DMA isn't present When CONFIG_HAS_DMA isn't enabled, the UDC core gets build errors: drivers/built-in.o: In function `dma_set_coherent_mask': include/linux/dma-mapping.h:93: undefined reference to `dma_supported' include/linux/dma-mapping.h:93: undefined reference to `dma_supported' drivers/built-in.o: In function `usb_gadget_unmap_request': drivers/usb/gadget/udc-core.c:91: undefined reference to `dma_unmap_sg' drivers/usb/gadget/udc-core.c:96: undefined reference to `dma_unmap_single' drivers/built-in.o: In function `usb_gadget_map_request': drivers/usb/gadget/udc-core.c:62: undefined reference to `dma_map_sg' drivers/usb/gadget/udc-core.c:71: undefined reference to `dma_map_single' drivers/usb/gadget/udc-core.c:74: undefined reference to `dma_mapping_error' Prevent this by protecting the DMA API routines with preprocessor tests. Signed-off-by: Alan Stern CC: Geert Uytterhoeven Acked-by: Alexander Shishkin Signed-off-by: Felipe Balbi --- drivers/usb/gadget/udc-core.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c index ffd8fa54110..c28ac987203 100644 --- a/drivers/usb/gadget/udc-core.c +++ b/drivers/usb/gadget/udc-core.c @@ -50,6 +50,8 @@ static DEFINE_MUTEX(udc_lock); /* ------------------------------------------------------------------------- */ +#ifdef CONFIG_HAS_DMA + int usb_gadget_map_request(struct usb_gadget *gadget, struct usb_request *req, int is_in) { @@ -99,6 +101,8 @@ void usb_gadget_unmap_request(struct usb_gadget *gadget, } EXPORT_SYMBOL_GPL(usb_gadget_unmap_request); +#endif /* CONFIG_HAS_DMA */ + /* ------------------------------------------------------------------------- */ void usb_gadget_set_state(struct usb_gadget *gadget, @@ -194,9 +198,11 @@ int usb_add_gadget_udc_release(struct device *parent, struct usb_gadget *gadget, dev_set_name(&gadget->dev, "gadget"); gadget->dev.parent = parent; +#ifdef CONFIG_HAS_DMA dma_set_coherent_mask(&gadget->dev, parent->coherent_dma_mask); gadget->dev.dma_parms = parent->dma_parms; gadget->dev.dma_mask = parent->dma_mask; +#endif if (release) gadget->dev.release = release; -- cgit v1.2.3 From 24e6bfd9d9d4e2f34dee59f0b477b72bdda5f800 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 15 Jul 2013 14:06:54 +0530 Subject: usb: phy: samsung: Fix an error message typo The error message is common to both clk_get functions. Update it accordingly. Signed-off-by: Sachin Kamat Signed-off-by: Felipe Balbi --- drivers/usb/phy/phy-samsung-usb2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/phy/phy-samsung-usb2.c b/drivers/usb/phy/phy-samsung-usb2.c index 1011c16ade7..758b86d0fcb 100644 --- a/drivers/usb/phy/phy-samsung-usb2.c +++ b/drivers/usb/phy/phy-samsung-usb2.c @@ -388,7 +388,7 @@ static int samsung_usb2phy_probe(struct platform_device *pdev) clk = devm_clk_get(dev, "otg"); if (IS_ERR(clk)) { - dev_err(dev, "Failed to get otg clock\n"); + dev_err(dev, "Failed to get usbhost/otg clock\n"); return PTR_ERR(clk); } -- cgit v1.2.3 From 690c70bab1ebab0782cf9c316b726e2dddebc411 Mon Sep 17 00:00:00 2001 From: Ruchika Kharwar Date: Thu, 4 Jul 2013 00:21:19 -0500 Subject: usb: phy: omap-usb3: fix dpll clock index Correction of the omap_usb3_dpll_params array when the sys_clk_rate is 20MHz. Signed-off-by: Nikhil Devshatwar Signed-off-by: Ruchika Kharwar Signed-off-by: Felipe Balbi --- drivers/usb/phy/phy-omap-usb3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/phy/phy-omap-usb3.c b/drivers/usb/phy/phy-omap-usb3.c index efe6e1464f4..a2fb30bbb97 100644 --- a/drivers/usb/phy/phy-omap-usb3.c +++ b/drivers/usb/phy/phy-omap-usb3.c @@ -71,9 +71,9 @@ static struct usb_dpll_params omap_usb3_dpll_params[NUM_SYS_CLKS] = { {1250, 5, 4, 20, 0}, /* 12 MHz */ {3125, 20, 4, 20, 0}, /* 16.8 MHz */ {1172, 8, 4, 20, 65537}, /* 19.2 MHz */ + {1000, 7, 4, 10, 0}, /* 20 MHz */ {1250, 12, 4, 20, 0}, /* 26 MHz */ {3125, 47, 4, 20, 92843}, /* 38.4 MHz */ - {1000, 7, 4, 10, 0}, /* 20 MHz */ }; -- cgit v1.2.3 From 84bb08472520882394fe16d7a3548793302563de Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sun, 9 Jun 2013 22:07:47 -0300 Subject: ARM: dts: imx51-babbage: Pass a real clock to the codec On imx51_babbage the codec clock is activated via GPIO4_26. Provide a real clock to the sgtl5000 codec via device tree. Signed-off-by: Fabio Estevam Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx51-babbage.dts | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/imx51-babbage.dts b/arch/arm/boot/dts/imx51-babbage.dts index 6dd9486c755..ad3471ca17c 100644 --- a/arch/arm/boot/dts/imx51-babbage.dts +++ b/arch/arm/boot/dts/imx51-babbage.dts @@ -61,6 +61,16 @@ mux-int-port = <2>; mux-ext-port = <3>; }; + + clocks { + clk_26M: codec_clock { + compatible = "fixed-clock"; + reg=<0>; + #clock-cells = <0>; + clock-frequency = <26000000>; + gpios = <&gpio4 26 1>; + }; + }; }; &esdhc1 { @@ -229,6 +239,7 @@ MX51_PAD_EIM_A27__GPIO2_21 0x5 MX51_PAD_CSPI1_SS0__GPIO4_24 0x85 MX51_PAD_CSPI1_SS1__GPIO4_25 0x85 + MX51_PAD_CSPI1_RDY__GPIO4_26 0x80000000 >; }; }; @@ -255,7 +266,7 @@ sgtl5000: codec@0a { compatible = "fsl,sgtl5000"; reg = <0x0a>; - clock-frequency = <26000000>; + clocks = <&clk_26M>; VDDA-supply = <&vdig_reg>; VDDIO-supply = <&vvideo_reg>; }; -- cgit v1.2.3 From cb6f66a2d278e57a6c9d8fb59bd9ebd8ab3965c2 Mon Sep 17 00:00:00 2001 From: Chih-Chung Chang Date: Mon, 15 Jul 2013 09:38:46 -0700 Subject: ASoC: max98088 - fix element type of the register cache. The registers of max98088 are 8 bits, not 16 bits. This bug causes the contents of registers to be overwritten with bad values when the codec is suspended and then resumed. Signed-off-by: Chih-Chung Chang Signed-off-by: Dylan Reid Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- sound/soc/codecs/max98088.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/codecs/max98088.c b/sound/soc/codecs/max98088.c index 3eeada57e87..566a367c94f 100644 --- a/sound/soc/codecs/max98088.c +++ b/sound/soc/codecs/max98088.c @@ -1612,7 +1612,7 @@ static int max98088_dai2_digital_mute(struct snd_soc_dai *codec_dai, int mute) static void max98088_sync_cache(struct snd_soc_codec *codec) { - u16 *reg_cache = codec->reg_cache; + u8 *reg_cache = codec->reg_cache; int i; if (!codec->cache_sync) -- cgit v1.2.3 From e085cad6c653e20e213a662ef32fb6191ae0197d Mon Sep 17 00:00:00 2001 From: Kukjin Kim Date: Wed, 26 Jun 2013 22:29:44 +0900 Subject: ARM: EXYNOS: skip pm support on exynos5440 EXYNOS5440 doesn't support PM and current single image for EXYNOS will be break without this patch. Actually, SSDK5440 cannot boot without this so this should be merged during rc. Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/pm.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c index 41c20692a13..c679db57726 100644 --- a/arch/arm/mach-exynos/pm.c +++ b/arch/arm/mach-exynos/pm.c @@ -217,6 +217,9 @@ static __init int exynos_pm_drvinit(void) struct clk *pll_base; unsigned int tmp; + if (soc_is_exynos5440()) + return 0; + s3c_pm_init(); /* All wakeup disable */ @@ -340,6 +343,9 @@ static struct syscore_ops exynos_pm_syscore_ops = { static __init int exynos_pm_syscore_init(void) { + if (soc_is_exynos5440()) + return 0; + register_syscore_ops(&exynos_pm_syscore_ops); return 0; } -- cgit v1.2.3 From ea2761763739619ca49602d891ec3ffb33ffc71b Mon Sep 17 00:00:00 2001 From: Subash Patel Date: Tue, 16 Jul 2013 12:42:13 +0900 Subject: ARM: EXYNOS: change the PHYSMEM_BITS and SECTION_SIZE On EXYNOS5440 there is DRAM on the 36-bit address range. Hence this patch converts the MAX_PHYSMEM_BITS macro to 36 if LPAE is enabled for the ARM architecture. The conventional section size on EXYNOS is 256M due to sparsemem. Since EXYNOS5440 has memory in multiples of 1G in 32-bit and 36-bit range, this has now been modified to 31. Signed-off-by: Subash Patel Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/include/mach/memory.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/mach-exynos/include/mach/memory.h b/arch/arm/mach-exynos/include/mach/memory.h index 374ef2cf715..2a4cdb7cb32 100644 --- a/arch/arm/mach-exynos/include/mach/memory.h +++ b/arch/arm/mach-exynos/include/mach/memory.h @@ -15,8 +15,13 @@ #define PLAT_PHYS_OFFSET UL(0x40000000) +#ifndef CONFIG_ARM_LPAE /* Maximum of 256MiB in one bank */ #define MAX_PHYSMEM_BITS 32 #define SECTION_SIZE_BITS 28 +#else +#define MAX_PHYSMEM_BITS 36 +#define SECTION_SIZE_BITS 31 +#endif #endif /* __ASM_ARCH_MEMORY_H */ -- cgit v1.2.3 From cfaf8ee2f91607c8955af68538ba849b125fb8d5 Mon Sep 17 00:00:00 2001 From: Thomas Abraham Date: Tue, 16 Jul 2013 12:42:59 +0900 Subject: ARM: EXYNOS: Enable 64-bit DMA for EXYNOS5440 if LPAE is enabled Allow 64-bit DMA addresses if LPAE is enabled on EXYNOS5440. Signed-off-by: Thomas Abraham Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index 855d4a7b462..5952e68c76c 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -92,6 +92,7 @@ config SOC_EXYNOS5440 bool "SAMSUNG EXYNOS5440" default y depends on ARCH_EXYNOS5 + select ARCH_DMA_ADDR_T_64BIT if ARM_LPAE select ARCH_HAS_OPP select HAVE_ARM_ARCH_TIMER select AUTO_ZRELADDR -- cgit v1.2.3 From eac27f04a71e1f39f196f7e520d16dcefc955d77 Mon Sep 17 00:00:00 2001 From: Youquan Song Date: Thu, 11 Jul 2013 21:15:57 -0400 Subject: ata: Fix DVD not dectected at some platform with Wellsburg PCH There is a patch b55f84e2d527182e7c611d466cd0bb6ddce201de "ata_piix: Fix DVD not dectected at some Haswell platforms" to fix an issue of DVD not recognized on Haswell Desktop platform with Lynx Point. Recently, it is also found the same issue at some platformas with Wellsburg PCH. So deliver a similar patch to fix it by disables 32bit PIO in IDE mode. Signed-off-by: Youquan Song Signed-off-by: Tejun Heo Cc: stable@vger.kernel.org --- drivers/ata/ata_piix.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index b52a10c8eeb..513ad7ed0c9 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -330,7 +330,7 @@ static const struct pci_device_id piix_pci_tbl[] = { /* SATA Controller IDE (Wellsburg) */ { 0x8086, 0x8d00, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb }, /* SATA Controller IDE (Wellsburg) */ - { 0x8086, 0x8d08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, + { 0x8086, 0x8d08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_snb }, /* SATA Controller IDE (Wellsburg) */ { 0x8086, 0x8d60, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb }, /* SATA Controller IDE (Wellsburg) */ -- cgit v1.2.3 From 741532c4a995be11815cb72d4d7a48f442a22fea Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Tue, 18 Jun 2013 19:04:47 +0300 Subject: ARM: OMAP2+: Provide alias to USB PHY clock Till the OMAP clocks are correctly defined in device tree, use this temporary hack to provide clock alias to the USB PHY clocks. Without this, USB Host & Ethernet will not be functional with device tree boots on Panda and uEVM. Signed-off-by: Roger Quadros Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-generic.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index e5fbfed69aa..be5d005ebad 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -15,6 +15,7 @@ #include #include #include +#include #include @@ -35,6 +36,21 @@ static struct of_device_id omap_dt_match_table[] __initdata = { { } }; +/* + * Create alias for USB host PHY clock. + * Remove this when clock phandle can be provided via DT + */ +static void __init legacy_init_ehci_clk(char *clkname) +{ + int ret; + + ret = clk_add_alias("main_clk", NULL, clkname, NULL); + if (ret) { + pr_err("%s:Failed to add main_clk alias to %s :%d\n", + __func__, clkname, ret); + } +} + static void __init omap_generic_init(void) { omap_sdrc_init(NULL, NULL); @@ -45,10 +61,15 @@ static void __init omap_generic_init(void) * HACK: call display setup code for selected boards to enable omapdss. * This will be removed when omapdss supports DT. */ - if (of_machine_is_compatible("ti,omap4-panda")) + if (of_machine_is_compatible("ti,omap4-panda")) { omap4_panda_display_init_of(); + legacy_init_ehci_clk("auxclk3_ck"); + + } else if (of_machine_is_compatible("ti,omap4-sdp")) omap_4430sdp_display_init_of(); + else if (of_machine_is_compatible("ti,omap5-uevm")) + legacy_init_ehci_clk("auxclk1_ck"); } #ifdef CONFIG_SOC_OMAP2420 -- cgit v1.2.3 From 30f099cd88c8e92206c5e4ccf814ce0362db3d22 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Wed, 26 Jun 2013 09:58:16 +0800 Subject: ARM: edma: remove duplicated include from edma.c Remove duplicated include. Signed-off-by: Wei Yongjun Signed-off-by: Sekhar Nori --- arch/arm/common/edma.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm/common/edma.c b/arch/arm/common/edma.c index a432e6c1dac..39ad030ac0c 100644 --- a/arch/arm/common/edma.c +++ b/arch/arm/common/edma.c @@ -26,7 +26,6 @@ #include #include #include -#include #include #include #include -- cgit v1.2.3 From 9c559708b6cda71d8fdabc3f98cb7e98edbd4f0b Mon Sep 17 00:00:00 2001 From: Sekhar Nori Date: Fri, 12 Jul 2013 15:19:03 +0530 Subject: ARM: davinci: make file local variables static Make file local variables static in mach-davinci. This fixes sparse warnings of the form: arch/arm/mach-davinci/dm355.c:863:27: warning: symbol 'dm355_venc_pdata' was not declared. Should it be static? Cc: Prabhakar Lad Acked-by: Prabhakar Lad Signed-off-by: Sekhar Nori --- arch/arm/mach-davinci/board-dm365-evm.c | 2 +- arch/arm/mach-davinci/dm355.c | 2 +- arch/arm/mach-davinci/dm365.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c index afbc439f11d..4cdb61c5445 100644 --- a/arch/arm/mach-davinci/board-dm365-evm.c +++ b/arch/arm/mach-davinci/board-dm365-evm.c @@ -505,7 +505,7 @@ static struct vpbe_output dm365evm_vpbe_outputs[] = { /* * Amplifiers on the board */ -struct ths7303_platform_data ths7303_pdata = { +static struct ths7303_platform_data ths7303_pdata = { .ch_1 = 3, .ch_2 = 3, .ch_3 = 3, diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c index 42ef53f62c6..86100d17969 100644 --- a/arch/arm/mach-davinci/dm355.c +++ b/arch/arm/mach-davinci/dm355.c @@ -860,7 +860,7 @@ static struct platform_device dm355_vpbe_display = { }, }; -struct venc_platform_data dm355_venc_pdata = { +static struct venc_platform_data dm355_venc_pdata = { .setup_pinmux = dm355_vpbe_setup_pinmux, .setup_clock = dm355_venc_setup_clock, }; diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c index fa7af5eda52..dad28029ba9 100644 --- a/arch/arm/mach-davinci/dm365.c +++ b/arch/arm/mach-davinci/dm365.c @@ -1349,7 +1349,7 @@ static struct platform_device dm365_vpbe_display = { }, }; -struct venc_platform_data dm365_venc_pdata = { +static struct venc_platform_data dm365_venc_pdata = { .setup_pinmux = dm365_vpbe_setup_pinmux, .setup_clock = dm365_venc_setup_clock, }; -- cgit v1.2.3 From cf690331642010a837c026088588761f61528ddf Mon Sep 17 00:00:00 2001 From: Sekhar Nori Date: Fri, 12 Jul 2013 19:19:59 +0530 Subject: ARM: davinci: defconfig: enable EDMA driver Enable EDMA dmaengine driver by default in DaVinci defconfig files as it is required for DMA support on MMC/SD, SPI etc. Signed-off-by: Sekhar Nori --- arch/arm/configs/da8xx_omapl_defconfig | 2 ++ arch/arm/configs/davinci_all_defconfig | 2 ++ 2 files changed, 4 insertions(+) diff --git a/arch/arm/configs/da8xx_omapl_defconfig b/arch/arm/configs/da8xx_omapl_defconfig index 7c868139bdb..1571bea48be 100644 --- a/arch/arm/configs/da8xx_omapl_defconfig +++ b/arch/arm/configs/da8xx_omapl_defconfig @@ -102,6 +102,8 @@ CONFIG_SND_SOC=m CONFIG_SND_DAVINCI_SOC=m # CONFIG_HID_SUPPORT is not set # CONFIG_USB_SUPPORT is not set +CONFIG_DMADEVICES=y +CONFIG_TI_EDMA=y CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y CONFIG_XFS_FS=m diff --git a/arch/arm/configs/davinci_all_defconfig b/arch/arm/configs/davinci_all_defconfig index c86fd75e181..ab2f7378352 100644 --- a/arch/arm/configs/davinci_all_defconfig +++ b/arch/arm/configs/davinci_all_defconfig @@ -162,6 +162,8 @@ CONFIG_LEDS_TRIGGERS=y CONFIG_LEDS_TRIGGER_TIMER=m CONFIG_LEDS_TRIGGER_HEARTBEAT=m CONFIG_RTC_CLASS=y +CONFIG_DMADEVICES=y +CONFIG_TI_EDMA=y CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y CONFIG_XFS_FS=m -- cgit v1.2.3 From 46a5905e1cd4a9d9d238ec7beece49ce49e2ad85 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Tue, 16 Jul 2013 09:17:27 +0800 Subject: ASoC: sgtl5000: defer the probe if clock is not found It's not always the case that clock is already available when sgtl5000 get probed at the first time, e.g. the clock is provided by CPU DAI which may be probed after sgtl5000. So let's defer the probe when devm_clk_get() call fails and give it chance to try later. It fixes the regression on imx28 since commit 9e13f34 (ASoC: sgtl5000: Let the codec acquire its clock). [ 1.927637] sgtl5000 0-000a: Failed to get mclock: -2 [ 1.934280] sgtl5000: probe of 0-000a failed with error -2 [ 1.945906] mxs-sgtl5000 sound.13: ASoC: CODEC (null) not registered [ 1.953787] mxs-sgtl5000 sound.13: snd_soc_register_card failed (-517) [ 1.960865] platform sound.13: Driver mxs-sgtl5000 requests probe deferral Signed-off-by: Shawn Guo Signed-off-by: Mark Brown --- sound/soc/codecs/sgtl5000.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c index d659d3adcfb..6c8a9e7bee2 100644 --- a/sound/soc/codecs/sgtl5000.c +++ b/sound/soc/codecs/sgtl5000.c @@ -1527,6 +1527,9 @@ static int sgtl5000_i2c_probe(struct i2c_client *client, if (IS_ERR(sgtl5000->mclk)) { ret = PTR_ERR(sgtl5000->mclk); dev_err(&client->dev, "Failed to get mclock: %d\n", ret); + /* Defer the probe to see if the clk will be provided later */ + if (ret == -ENOENT) + return -EPROBE_DEFER; return ret; } -- cgit v1.2.3 From 36ff66db3fb5642906e46e73ca9cf92f1c5974ff Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Thu, 27 Jun 2013 15:27:07 -0400 Subject: USB: move the definition of USB_MAXCHILDREN The USB_MAXCHILDREN symbol is used in include/uapi/linux/usb/ch11.h, a user-mode header, even though it is defined in include/linux/usb.h, which is kernel-only. This causes compile-time errors when user programs try to #include linux/usb/ch11.h. This patch fixes the problem by moving the definition of USB_MAXCHILDREN into ch11.h. It also gets rid of unneeded parentheses. Signed-off-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- include/linux/usb.h | 11 ----------- include/uapi/linux/usb/ch11.h | 11 +++++++++++ 2 files changed, 11 insertions(+), 11 deletions(-) diff --git a/include/linux/usb.h b/include/linux/usb.h index a232b7ece1f..0eec2689b95 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -367,17 +367,6 @@ struct usb_bus { /* ----------------------------------------------------------------------- */ -/* This is arbitrary. - * From USB 2.0 spec Table 11-13, offset 7, a hub can - * have up to 255 ports. The most yet reported is 10. - * - * Current Wireless USB host hardware (Intel i1480 for example) allows - * up to 22 devices to connect. Upcoming hardware might raise that - * limit. Because the arrays need to add a bit for hub status data, we - * do 31, so plus one evens out to four bytes. - */ -#define USB_MAXCHILDREN (31) - struct usb_tt; enum usb_device_removable { diff --git a/include/uapi/linux/usb/ch11.h b/include/uapi/linux/usb/ch11.h index 7692dc69ccf..331499d597f 100644 --- a/include/uapi/linux/usb/ch11.h +++ b/include/uapi/linux/usb/ch11.h @@ -11,6 +11,17 @@ #include /* __u8 etc */ +/* This is arbitrary. + * From USB 2.0 spec Table 11-13, offset 7, a hub can + * have up to 255 ports. The most yet reported is 10. + * + * Current Wireless USB host hardware (Intel i1480 for example) allows + * up to 22 devices to connect. Upcoming hardware might raise that + * limit. Because the arrays need to add a bit for hub status data, we + * use 31, so plus one evens out to four bytes. + */ +#define USB_MAXCHILDREN 31 + /* * Hub request types */ -- cgit v1.2.3 From e583d9db9960cf40e0bc8afee4946baa9d71596e Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Thu, 11 Jul 2013 14:58:04 -0400 Subject: USB: global suspend and remote wakeup don't mix MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The hub driver was recently changed to use "global" suspend for system suspend transitions on non-SuperSpeed buses. This means that we don't suspend devices individually by setting the suspend feature on the upstream hub port; instead devices all go into suspend automatically when the root hub stops transmitting packets. The idea was to save time and to avoid certain kinds of wakeup races. Now it turns out that many hubs are buggy; they don't relay wakeup requests from a downstream port to their upstream port if the downstream port's suspend feature is not set (depending on the speed of the downstream port, whether or not the hub is enabled for remote wakeup, and possibly other factors). We can't have hubs dropping wakeup requests. Therefore this patch goes partway back to the old policy: It sets the suspend feature for a port if the device attached to that port or any of its descendants is enabled for wakeup. People will still be able to benefit from the time savings if they don't care about wakeup and leave it disabled on all their devices. In order to accomplish this, the patch adds a new field to the usb_hub structure: wakeup_enabled_descendants is a count of how many devices below a suspended hub are enabled for remote wakeup. A corresponding new subroutine determines the number of wakeup-enabled devices at or below an arbitrary suspended USB device. This should be applied to the 3.10 stable kernel. Signed-off-by: Alan Stern Reported-and-tested-by: Toralf Förster Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hub.c | 39 +++++++++++++++++++++++++++++++-------- drivers/usb/core/hub.h | 3 +++ 2 files changed, 34 insertions(+), 8 deletions(-) diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 4191db32f12..c857471519e 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2848,6 +2848,15 @@ static int usb_disable_function_remotewakeup(struct usb_device *udev) USB_CTRL_SET_TIMEOUT); } +/* Count of wakeup-enabled devices at or below udev */ +static unsigned wakeup_enabled_descendants(struct usb_device *udev) +{ + struct usb_hub *hub = usb_hub_to_struct_hub(udev); + + return udev->do_remote_wakeup + + (hub ? hub->wakeup_enabled_descendants : 0); +} + /* * usb_port_suspend - suspend a usb device's upstream port * @udev: device that's no longer in active use, not a root hub @@ -2888,8 +2897,8 @@ static int usb_disable_function_remotewakeup(struct usb_device *udev) * Linux (2.6) currently has NO mechanisms to initiate that: no khubd * timer, no SRP, no requests through sysfs. * - * If Runtime PM isn't enabled or used, non-SuperSpeed devices really get - * suspended only when their bus goes into global suspend (i.e., the root + * If Runtime PM isn't enabled or used, non-SuperSpeed devices may not get + * suspended until their bus goes into global suspend (i.e., the root * hub is suspended). Nevertheless, we change @udev->state to * USB_STATE_SUSPENDED as this is the device's "logical" state. The actual * upstream port setting is stored in @udev->port_is_suspended. @@ -2960,15 +2969,21 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg) /* see 7.1.7.6 */ if (hub_is_superspeed(hub->hdev)) status = hub_set_port_link_state(hub, port1, USB_SS_PORT_LS_U3); - else if (PMSG_IS_AUTO(msg)) - status = set_port_feature(hub->hdev, port1, - USB_PORT_FEAT_SUSPEND); + /* * For system suspend, we do not need to enable the suspend feature * on individual USB-2 ports. The devices will automatically go * into suspend a few ms after the root hub stops sending packets. * The USB 2.0 spec calls this "global suspend". + * + * However, many USB hubs have a bug: They don't relay wakeup requests + * from a downstream port if the port's suspend feature isn't on. + * Therefore we will turn on the suspend feature if udev or any of its + * descendants is enabled for remote wakeup. */ + else if (PMSG_IS_AUTO(msg) || wakeup_enabled_descendants(udev) > 0) + status = set_port_feature(hub->hdev, port1, + USB_PORT_FEAT_SUSPEND); else { really_suspend = false; status = 0; @@ -3003,15 +3018,16 @@ int usb_port_suspend(struct usb_device *udev, pm_message_t msg) if (!PMSG_IS_AUTO(msg)) status = 0; } else { - /* device has up to 10 msec to fully suspend */ dev_dbg(&udev->dev, "usb %ssuspend, wakeup %d\n", (PMSG_IS_AUTO(msg) ? "auto-" : ""), udev->do_remote_wakeup); - usb_set_device_state(udev, USB_STATE_SUSPENDED); if (really_suspend) { udev->port_is_suspended = 1; + + /* device has up to 10 msec to fully suspend */ msleep(10); } + usb_set_device_state(udev, USB_STATE_SUSPENDED); } /* @@ -3293,7 +3309,11 @@ static int hub_suspend(struct usb_interface *intf, pm_message_t msg) unsigned port1; int status; - /* Warn if children aren't already suspended */ + /* + * Warn if children aren't already suspended. + * Also, add up the number of wakeup-enabled descendants. + */ + hub->wakeup_enabled_descendants = 0; for (port1 = 1; port1 <= hdev->maxchild; port1++) { struct usb_device *udev; @@ -3303,6 +3323,9 @@ static int hub_suspend(struct usb_interface *intf, pm_message_t msg) if (PMSG_IS_AUTO(msg)) return -EBUSY; } + if (udev) + hub->wakeup_enabled_descendants += + wakeup_enabled_descendants(udev); } if (hdev->do_remote_wakeup && hub->quirk_check_port_auto_suspend) { diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h index 6508e02b3da..4e4790dea34 100644 --- a/drivers/usb/core/hub.h +++ b/drivers/usb/core/hub.h @@ -59,6 +59,9 @@ struct usb_hub { struct usb_tt tt; /* Transaction Translator */ unsigned mA_per_port; /* current for each child */ +#ifdef CONFIG_PM + unsigned wakeup_enabled_descendants; +#endif unsigned limited_power:1; unsigned quiescing:1; -- cgit v1.2.3 From 84672369ffb98a51d4ddf74c20a23636da3ad615 Mon Sep 17 00:00:00 2001 From: Fernando Soto Date: Fri, 14 Jun 2013 23:13:35 +0000 Subject: Drivers: hv: vmbus: incorrect device name is printed when child device is unregistered MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Whenever a device is unregistered in vmbus_device_unregister (drivers/hv/vmbus_drv.c), the device name in the log message may contain garbage as the memory has already been freed by the time pr_info is called. Log example: [ 3149.170475] hv_vmbus: child device àõsèè0_5 unregistered By logging the message just before calling device_unregister, the correct device name is printed: [ 3145.034652] hv_vmbus: child device vmbus_0_5 unregistered Also changing register & unregister messages to debug to avoid unnecessarily cluttering the kernel log. Signed-off-by: Fernando M Soto Signed-off-by: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman --- drivers/hv/vmbus_drv.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index a2464bf07c4..e8e071fc1d6 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -690,7 +690,7 @@ int vmbus_device_register(struct hv_device *child_device_obj) if (ret) pr_err("Unable to register child device\n"); else - pr_info("child device %s registered\n", + pr_debug("child device %s registered\n", dev_name(&child_device_obj->device)); return ret; @@ -702,14 +702,14 @@ int vmbus_device_register(struct hv_device *child_device_obj) */ void vmbus_device_unregister(struct hv_device *device_obj) { + pr_debug("child device %s unregistered\n", + dev_name(&device_obj->device)); + /* * Kick off the process of unregistering the device. * This will call vmbus_remove() and eventually vmbus_device_release() */ device_unregister(&device_obj->device); - - pr_info("child device %s unregistered\n", - dev_name(&device_obj->device)); } -- cgit v1.2.3 From ed07ec93e83ec471d365ce084e43ad90fd205903 Mon Sep 17 00:00:00 2001 From: "K. Y. Srinivasan" Date: Sun, 14 Jul 2013 22:38:11 -0700 Subject: Drivers: hv: balloon: Fix a bug in the hot-add code As we hot-add 128 MB chunks of memory, we wait to ensure that the memory is onlined before attempting to hot-add the next chunk. If the udev rule for memory hot-add is not executed within the allowed time, we would rollback the state and abort further hot-add. Since the hot-add has succeeded and the only failure is that the memory is not onlined within the allowed time, we should not be rolling back the state. Fix this bug. Signed-off-by: K. Y. Srinivasan Cc: Stable Acked-by: Jason Wang Signed-off-by: Greg Kroah-Hartman --- drivers/hv/hv_balloon.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c index 4c605c70ebf..61b7351df1d 100644 --- a/drivers/hv/hv_balloon.c +++ b/drivers/hv/hv_balloon.c @@ -562,7 +562,7 @@ static void hv_mem_hot_add(unsigned long start, unsigned long size, struct hv_hotadd_state *has) { int ret = 0; - int i, nid, t; + int i, nid; unsigned long start_pfn; unsigned long processed_pfn; unsigned long total_pfn = pfn_count; @@ -607,14 +607,11 @@ static void hv_mem_hot_add(unsigned long start, unsigned long size, /* * Wait for the memory block to be onlined. + * Since the hot add has succeeded, it is ok to + * proceed even if the pages in the hot added region + * have not been "onlined" within the allowed time. */ - t = wait_for_completion_timeout(&dm_device.ol_waitevent, 5*HZ); - if (t == 0) { - pr_info("hot_add memory timedout\n"); - has->ha_end_pfn -= HA_CHUNK; - has->covered_end_pfn -= processed_pfn; - break; - } + wait_for_completion_timeout(&dm_device.ol_waitevent, 5*HZ); } -- cgit v1.2.3 From c5e2254f8d63a6654149aa32ac5f2b7dd66a976d Mon Sep 17 00:00:00 2001 From: "K. Y. Srinivasan" Date: Sun, 14 Jul 2013 22:38:12 -0700 Subject: Drivers: hv: balloon: Do not post pressure status if interrupted When we are posting pressure status, we may get interrupted and handle the un-balloon operation. In this case just don't post the status as we know the pressure status is stale. Signed-off-by: K. Y. Srinivasan Cc: Stable Signed-off-by: Greg Kroah-Hartman --- drivers/hv/hv_balloon.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c index 61b7351df1d..deb5c25305a 100644 --- a/drivers/hv/hv_balloon.c +++ b/drivers/hv/hv_balloon.c @@ -975,6 +975,14 @@ static void post_status(struct hv_dynmem_device *dm) dm->num_pages_ballooned + compute_balloon_floor(); + /* + * If our transaction ID is no longer current, just don't + * send the status. This can happen if we were interrupted + * after we picked our transaction ID. + */ + if (status.hdr.trans_id != atomic_read(&trans_id)) + return; + vmbus_sendpacket(dm->dev->channel, &status, sizeof(struct dm_status), (unsigned long)NULL, -- cgit v1.2.3 From ed4bb9744b41d39ba35080c2390e201575121dc7 Mon Sep 17 00:00:00 2001 From: "K. Y. Srinivasan" Date: Thu, 11 Jul 2013 12:03:31 -0700 Subject: Tools: hv: KVP: Fix a bug in IPV6 subnet enumeration Each subnet string needs to be separated with a semicolon. Fix this bug. Signed-off-by: K. Y. Srinivasan Cc: Stable Signed-off-by: Greg Kroah-Hartman --- tools/hv/hv_kvp_daemon.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c index ca9fa4d32e0..07819bfa7db 100644 --- a/tools/hv/hv_kvp_daemon.c +++ b/tools/hv/hv_kvp_daemon.c @@ -1026,9 +1026,10 @@ kvp_get_ip_info(int family, char *if_name, int op, if (sn_offset == 0) strcpy(sn_str, cidr_mask); - else + else { + strcat((char *)ip_buffer->sub_net, ";"); strcat(sn_str, cidr_mask); - strcat((char *)ip_buffer->sub_net, ";"); + } sn_offset += strlen(sn_str) + 1; } -- cgit v1.2.3 From 9a9b1c618d835e7a6a4097eb47ee47991202a3c1 Mon Sep 17 00:00:00 2001 From: Boris BREZILLON Date: Thu, 18 Jul 2013 09:48:40 +0200 Subject: ASoC: atmel-ssc: remove clk_disable_unprepare call from critical section clk_prepare/unprepare (and indirectly clk_prepare_enable/disable_unprepare) may sleep and thus cannot be called in critical section. This patch fix a bug introduced by commit 6f0d94790efe9f4481bbd7c174ef0e9b5e5db7c4 where clk_disable_unprepare was called with user_lock hold. Signed-off-by: Boris BREZILLON Signed-off-by: Mark Brown --- drivers/misc/atmel-ssc.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/misc/atmel-ssc.c b/drivers/misc/atmel-ssc.c index f7b90661e32..e068a76a5f6 100644 --- a/drivers/misc/atmel-ssc.c +++ b/drivers/misc/atmel-ssc.c @@ -66,14 +66,19 @@ EXPORT_SYMBOL(ssc_request); void ssc_free(struct ssc_device *ssc) { + bool disable_clk = true; + spin_lock(&user_lock); - if (ssc->user) { + if (ssc->user) ssc->user--; - clk_disable_unprepare(ssc->clk); - } else { + else { + disable_clk = false; dev_dbg(&ssc->pdev->dev, "device already free\n"); } spin_unlock(&user_lock); + + if (disable_clk) + clk_disable_unprepare(ssc->clk); } EXPORT_SYMBOL(ssc_free); -- cgit v1.2.3 From 1ea9a69d1a36a5b62bf281ba8bb304fcac656dad Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 19 Jul 2013 07:58:02 +0200 Subject: ALSA: hda - Fix EAPD GPIO control for Sigmatel codecs The EAPD GPIO is dynamically turned on/off for some machines with Sigmatel codecs, but this didn't work as expected, and it resulted in spontaneous lost of speaker outputs per HP plugging or power-saving. This patch fixes the bug by simply including spec->eapd_mask into spec->gpio_mask and spec->gpio_data bits. Reported-and-tested-by: Eric Shattow Cc: [v3.9+] Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_sigmatel.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index e2f83591161..766e56754c6 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -417,9 +417,11 @@ static void stac_update_outputs(struct hda_codec *codec) val &= ~spec->eapd_mask; else val |= spec->eapd_mask; - if (spec->gpio_data != val) + if (spec->gpio_data != val) { + spec->gpio_data = val; stac_gpio_set(codec, spec->gpio_mask, spec->gpio_dir, val); + } } } @@ -3612,20 +3614,18 @@ static int stac_parse_auto_config(struct hda_codec *codec) static int stac_init(struct hda_codec *codec) { struct sigmatel_spec *spec = codec->spec; - unsigned int gpio; int i; /* override some hints */ stac_store_hints(codec); /* set up GPIO */ - gpio = spec->gpio_data; /* turn on EAPD statically when spec->eapd_switch isn't set. * otherwise, unsol event will turn it on/off dynamically */ if (!spec->eapd_switch) - gpio |= spec->eapd_mask; - stac_gpio_set(codec, spec->gpio_mask, spec->gpio_dir, gpio); + spec->gpio_data |= spec->eapd_mask; + stac_gpio_set(codec, spec->gpio_mask, spec->gpio_dir, spec->gpio_data); snd_hda_gen_init(codec); @@ -3915,6 +3915,7 @@ static void stac_setup_gpio(struct hda_codec *codec) { struct sigmatel_spec *spec = codec->spec; + spec->gpio_mask |= spec->eapd_mask; if (spec->gpio_led) { if (!spec->vref_mute_led_nid) { spec->gpio_mask |= spec->gpio_led; -- cgit v1.2.3 From f3e351eef3a7fd1e36a3e18d4f2f069b00deb23c Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 19 Jul 2013 08:02:25 +0200 Subject: ALSA: hda - Remove NO_PRESENCE bit override for Dell 1420n Laptop The quirk for Dell laptops with STAC9228 overrides the pin default config of NID 0x0f to the value with AC_DEFCFG_MISC_NO_PRESENCE bit on. I'm not quite sure why this was done so, but can guess that this was introduced for avoiding this to be muted by another headphone plug. Now, after transition to the generic parser, this workaround rather causes a problem (notably as unexpected speaker mutes) because the pin is seen as if it's always plugged in. Since the generic parser can handle multiple headphone plugging gracefully, we can get rid of this override now. Reported-and-tested-by: Eric Shattow Cc: [v3.9+] Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_sigmatel.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 766e56754c6..92b9b432437 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -3233,7 +3233,7 @@ static const struct hda_fixup stac927x_fixups[] = { /* configure the analog microphone on some laptops */ { 0x0c, 0x90a79130 }, /* correct the front output jack as a hp out */ - { 0x0f, 0x0227011f }, + { 0x0f, 0x0221101f }, /* correct the front input jack as a mic */ { 0x0e, 0x02a79130 }, {} -- cgit v1.2.3 From 83e2e4eeb85fd45ff592b79ea11a19df49df872e Mon Sep 17 00:00:00 2001 From: H Hartley Sweeten Date: Fri, 19 Jul 2013 09:53:25 -0700 Subject: ASoC: ep93xx: fix build of ep93xx-ac97.c Fix the build of this driver. It was broken by: Commit 453807f3006757a5661c4000262d7d9284b5214c ASoC: ep93xx: Use ep93xx_dma_params instead of ep93xx_pcm_dma_params The removed struct ep93xx_pcm_dma_params use the member 'dma_port' to select the dma channel. The struct ep93xx_dma_data uses the member 'port'. Signed-off-by: H Hartley Sweeten Cc: Ryan Mallon Cc: Lars-Peter Clausen Cc: Mark Brown Cc: Liam Girdwood Cc: Jaroslav Kysela Cc: Takashi Iwai Signed-off-by: Mark Brown --- sound/soc/cirrus/ep93xx-ac97.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/cirrus/ep93xx-ac97.c b/sound/soc/cirrus/ep93xx-ac97.c index ac73c607410..04491f0e8d1 100644 --- a/sound/soc/cirrus/ep93xx-ac97.c +++ b/sound/soc/cirrus/ep93xx-ac97.c @@ -102,13 +102,13 @@ static struct ep93xx_ac97_info *ep93xx_ac97_info; static struct ep93xx_dma_data ep93xx_ac97_pcm_out = { .name = "ac97-pcm-out", - .dma_port = EP93XX_DMA_AAC1, + .port = EP93XX_DMA_AAC1, .direction = DMA_MEM_TO_DEV, }; static struct ep93xx_dma_data ep93xx_ac97_pcm_in = { .name = "ac97-pcm-in", - .dma_port = EP93XX_DMA_AAC1, + .port = EP93XX_DMA_AAC1, .direction = DMA_DEV_TO_MEM, }; -- cgit v1.2.3 From 9af588736f48401cca6a39a96a59fb994068237f Mon Sep 17 00:00:00 2001 From: Ulf Hansson Date: Mon, 27 May 2013 15:16:06 +0200 Subject: ARM: nomadik: Update MMC defconfigs Enable MMC_UNSAFE_RESUME to accomplish a proper suspend/resume cycle for SD/SDIO/(e)MMC. ARMMMCI host driver supports clock gating through runtime PM, thus MMC_CLKGATE is not needed. Moreover ARMMMCI can do scatter-gather which means we can explicity disable MMC_BLOCK_BOUNCE, since it's default enabled, to skip unnecessary bounce buffer copying. Signed-off-by: Ulf Hansson Signed-off-by: Linus Walleij --- arch/arm/configs/nhk8815_defconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/configs/nhk8815_defconfig b/arch/arm/configs/nhk8815_defconfig index 35f8cf299fa..b605575f322 100644 --- a/arch/arm/configs/nhk8815_defconfig +++ b/arch/arm/configs/nhk8815_defconfig @@ -95,7 +95,8 @@ CONFIG_I2C_NOMADIK=y CONFIG_DEBUG_GPIO=y # CONFIG_HWMON is not set CONFIG_MMC=y -CONFIG_MMC_CLKGATE=y +CONFIG_MMC_UNSAFE_RESUME=y +# CONFIG_MMC_BLOCK_BOUNCE is not set CONFIG_MMC_ARMMMCI=y CONFIG_NEW_LEDS=y CONFIG_LEDS_CLASS=y -- cgit v1.2.3 From 931f57378631c19545ec933d2df0f4fb46d16659 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 28 May 2013 16:40:29 +0200 Subject: ARM: nomadik: update defconfig base Update the Nomadik defconfig enabling: - GPIO keyboard input - Regulators - LED class driver - LED heartbeat trigger Signed-off-by: Linus Walleij --- arch/arm/configs/nhk8815_defconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/configs/nhk8815_defconfig b/arch/arm/configs/nhk8815_defconfig index b605575f322..e4cb5a42042 100644 --- a/arch/arm/configs/nhk8815_defconfig +++ b/arch/arm/configs/nhk8815_defconfig @@ -48,7 +48,6 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_MTD=y CONFIG_MTD_TESTS=m CONFIG_MTD_CMDLINE_PARTS=y -CONFIG_MTD_CHAR=y CONFIG_MTD_BLOCK=y CONFIG_MTD_NAND_ECC_SMC=y CONFIG_MTD_NAND=y @@ -94,6 +93,7 @@ CONFIG_I2C_GPIO=y CONFIG_I2C_NOMADIK=y CONFIG_DEBUG_GPIO=y # CONFIG_HWMON is not set +CONFIG_REGULATOR=y CONFIG_MMC=y CONFIG_MMC_UNSAFE_RESUME=y # CONFIG_MMC_BLOCK_BOUNCE is not set -- cgit v1.2.3 From fec57e15527ab2e3d22cfbf04f2b98f823f294ff Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 20 Jun 2013 13:48:16 +0200 Subject: ARM: nomadik: configure for NO_HZ and HRTIMERS This enables tickless idle (NO_HZ_IDLE) and high resolution timers for the Nomadik. Signed-off-by: Linus Walleij --- arch/arm/configs/nhk8815_defconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/configs/nhk8815_defconfig b/arch/arm/configs/nhk8815_defconfig index e4cb5a42042..263ae3869e3 100644 --- a/arch/arm/configs/nhk8815_defconfig +++ b/arch/arm/configs/nhk8815_defconfig @@ -1,6 +1,8 @@ # CONFIG_LOCALVERSION_AUTO is not set # CONFIG_SWAP is not set CONFIG_SYSVIPC=y +CONFIG_NO_HZ_IDLE=y +CONFIG_HIGH_RES_TIMERS=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_LOG_BUF_SHIFT=14 -- cgit v1.2.3 From be2f93a4c4981b3646b6f98f477154411b8516cb Mon Sep 17 00:00:00 2001 From: Eldad Zack Date: Fri, 19 Jul 2013 18:26:53 +0200 Subject: ALSA: usb-audio: 6fire: return correct XRUN indication Return SNDRV_PCM_POS_XRUN (snd_pcm_uframes_t) instead of SNDRV_PCM_STATE_XRUN (snd_pcm_state_t) from the pointer function of 6fire, as expected by snd_pcm_update_hw_ptr0(). Caught by sparse. Signed-off-by: Eldad Zack Cc: Signed-off-by: Takashi Iwai --- sound/usb/6fire/pcm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/usb/6fire/pcm.c b/sound/usb/6fire/pcm.c index 2aa4e13063a..3d2551cc10f 100644 --- a/sound/usb/6fire/pcm.c +++ b/sound/usb/6fire/pcm.c @@ -543,7 +543,7 @@ static snd_pcm_uframes_t usb6fire_pcm_pointer( snd_pcm_uframes_t ret; if (rt->panic || !sub) - return SNDRV_PCM_STATE_XRUN; + return SNDRV_PCM_POS_XRUN; spin_lock_irqsave(&sub->lock, flags); ret = sub->dma_off; -- cgit v1.2.3 From c5f167d31530b9b1aa7beb469aeca10f869eff5a Mon Sep 17 00:00:00 2001 From: Ian Campbell Date: Wed, 3 Jul 2013 09:44:50 +0100 Subject: pinctrl: am33xx dt binding: correct include path Using #include is a bit odd. It happens to work because the DTC flags include -Iarch/FOO/boot/dts as well as arch/FOO/boot/dts/include and arch/FOO/boot/dts/include/dt-bindings is a symlink to include/dt-bindings. Signed-off-by: Ian Campbell Cc: Grant Likely Cc: Linus Walleij Cc: linux-kernel@vger.kernel.org Signed-off-by: Linus Walleij --- include/dt-bindings/pinctrl/am33xx.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/dt-bindings/pinctrl/am33xx.h b/include/dt-bindings/pinctrl/am33xx.h index 469e0325e6f..2fbc804e1a4 100644 --- a/include/dt-bindings/pinctrl/am33xx.h +++ b/include/dt-bindings/pinctrl/am33xx.h @@ -5,7 +5,7 @@ #ifndef _DT_BINDINGS_PINCTRL_AM33XX_H #define _DT_BINDINGS_PINCTRL_AM33XX_H -#include +#include /* am33xx specific mux bit defines */ #undef PULL_ENA -- cgit v1.2.3 From 42a708c9328b1b23ed5f415401975e37a64f2747 Mon Sep 17 00:00:00 2001 From: Qipan Li Date: Thu, 4 Jul 2013 15:55:25 +0800 Subject: pinctrl: sirf: fix the pin number and mux bit for usp0 we missed a pin and related mux bit for usp pin group, this patch fixes it. Signed-off-by: Qipan Li Signed-off-by: Barry Song Signed-off-by: Linus Walleij --- drivers/pinctrl/sirf/pinctrl-atlas6.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/pinctrl/sirf/pinctrl-atlas6.c b/drivers/pinctrl/sirf/pinctrl-atlas6.c index 1fa39a44417..c641be9c5b8 100644 --- a/drivers/pinctrl/sirf/pinctrl-atlas6.c +++ b/drivers/pinctrl/sirf/pinctrl-atlas6.c @@ -496,7 +496,7 @@ static const unsigned sdmmc5_pins[] = { 24, 25, 26 }; static const struct sirfsoc_muxmask usp0_muxmask[] = { { .group = 1, - .mask = BIT(19) | BIT(20) | BIT(21) | BIT(22), + .mask = BIT(19) | BIT(20) | BIT(21) | BIT(22) | BIT(23), }, }; @@ -507,7 +507,7 @@ static const struct sirfsoc_padmux usp0_padmux = { .funcval = 0, }; -static const unsigned usp0_pins[] = { 51, 52, 53, 54 }; +static const unsigned usp0_pins[] = { 51, 52, 53, 54, 55 }; static const struct sirfsoc_muxmask usp1_muxmask[] = { { -- cgit v1.2.3 From d58e9a02e1435744d80a99742d1135a6921318eb Mon Sep 17 00:00:00 2001 From: Qipan Li Date: Thu, 4 Jul 2013 15:55:26 +0800 Subject: pinctrl: sirf: add usp0_uart_nostreamctrl pin group for usp-uart without flowctrl this patch adds the lost pin group which supports to let USP0 to simulate a UART without hardware flow control. Signed-off-by: Qipan Li Signed-off-by: Barry Song Signed-off-by: Linus Walleij --- arch/arm/boot/dts/atlas6.dtsi | 6 ++++++ drivers/pinctrl/sirf/pinctrl-atlas6.c | 20 ++++++++++++++++++++ 2 files changed, 26 insertions(+) diff --git a/arch/arm/boot/dts/atlas6.dtsi b/arch/arm/boot/dts/atlas6.dtsi index 9866cd736de..537041253db 100644 --- a/arch/arm/boot/dts/atlas6.dtsi +++ b/arch/arm/boot/dts/atlas6.dtsi @@ -485,6 +485,12 @@ sirf,function = "usp0"; }; }; + usp0_uart_nostreamctrl_pins_a: usp0@1 { + usp0 { + sirf,pins = "usp0_uart_nostreamctrl_grp"; + sirf,function = "usp0_uart_nostreamctrl"; + }; + }; usp1_pins_a: usp1@0 { usp1 { sirf,pins = "usp1grp"; diff --git a/drivers/pinctrl/sirf/pinctrl-atlas6.c b/drivers/pinctrl/sirf/pinctrl-atlas6.c index c641be9c5b8..867c9681763 100644 --- a/drivers/pinctrl/sirf/pinctrl-atlas6.c +++ b/drivers/pinctrl/sirf/pinctrl-atlas6.c @@ -509,6 +509,19 @@ static const struct sirfsoc_padmux usp0_padmux = { static const unsigned usp0_pins[] = { 51, 52, 53, 54, 55 }; +static const struct sirfsoc_muxmask usp0_uart_nostreamctrl_muxmask[] = { + { + .group = 1, + .mask = BIT(20) | BIT(21), + }, +}; + +static const struct sirfsoc_padmux usp0_uart_nostreamctrl_padmux = { + .muxmask_counts = ARRAY_SIZE(usp0_uart_nostreamctrl_muxmask), + .muxmask = usp0_uart_nostreamctrl_muxmask, +}; + +static const unsigned usp0_uart_nostreamctrl_pins[] = { 52, 53 }; static const struct sirfsoc_muxmask usp1_muxmask[] = { { .group = 0, @@ -822,6 +835,8 @@ static const struct sirfsoc_pin_group sirfsoc_pin_groups[] = { SIRFSOC_PIN_GROUP("uart2grp", uart2_pins), SIRFSOC_PIN_GROUP("uart2_nostreamctrlgrp", uart2_nostreamctrl_pins), SIRFSOC_PIN_GROUP("usp0grp", usp0_pins), + SIRFSOC_PIN_GROUP("usp0_uart_nostreamctrl_grp", + usp0_uart_nostreamctrl_pins), SIRFSOC_PIN_GROUP("usp1grp", usp1_pins), SIRFSOC_PIN_GROUP("i2c0grp", i2c0_pins), SIRFSOC_PIN_GROUP("i2c1grp", i2c1_pins), @@ -862,6 +877,8 @@ static const char * const uart0grp[] = { "uart0grp" }; static const char * const uart1grp[] = { "uart1grp" }; static const char * const uart2grp[] = { "uart2grp" }; static const char * const uart2_nostreamctrlgrp[] = { "uart2_nostreamctrlgrp" }; +static const char * const usp0_uart_nostreamctrl_grp[] = { + "usp0_uart_nostreamctrl_grp" }; static const char * const usp0grp[] = { "usp0grp" }; static const char * const usp1grp[] = { "usp1grp" }; static const char * const i2c0grp[] = { "i2c0grp" }; @@ -904,6 +921,9 @@ static const struct sirfsoc_pmx_func sirfsoc_pmx_functions[] = { SIRFSOC_PMX_FUNCTION("uart2", uart2grp, uart2_padmux), SIRFSOC_PMX_FUNCTION("uart2_nostreamctrl", uart2_nostreamctrlgrp, uart2_nostreamctrl_padmux), SIRFSOC_PMX_FUNCTION("usp0", usp0grp, usp0_padmux), + SIRFSOC_PMX_FUNCTION("usp0_uart_nostreamctrl", + usp0_uart_nostreamctrl_grp, + usp0_uart_nostreamctrl_padmux), SIRFSOC_PMX_FUNCTION("usp1", usp1grp, usp1_padmux), SIRFSOC_PMX_FUNCTION("i2c0", i2c0grp, i2c0_padmux), SIRFSOC_PMX_FUNCTION("i2c1", i2c1grp, i2c1_padmux), -- cgit v1.2.3 From c8078de853d51e9b86a2f025ee281b5a81c80655 Mon Sep 17 00:00:00 2001 From: Barry Song Date: Thu, 4 Jul 2013 15:55:27 +0800 Subject: arm/dts: sirf: fix the pingroup name mismatch between drivers and dts in drivers/pinctrl/sirf, pingroup name is cko0 and cko1, but in dts, they are cko0 and cko1_rst. this patch fixes the error in dts. Signed-off-by: Barry Song Signed-off-by: Linus Walleij --- arch/arm/boot/dts/atlas6.dtsi | 16 ++++++++-------- arch/arm/boot/dts/prima2.dtsi | 16 ++++++++-------- 2 files changed, 16 insertions(+), 16 deletions(-) diff --git a/arch/arm/boot/dts/atlas6.dtsi b/arch/arm/boot/dts/atlas6.dtsi index 537041253db..a0f2721ea58 100644 --- a/arch/arm/boot/dts/atlas6.dtsi +++ b/arch/arm/boot/dts/atlas6.dtsi @@ -521,16 +521,16 @@ sirf,function = "pulse_count"; }; }; - cko0_rst_pins_a: cko0_rst@0 { - cko0_rst { - sirf,pins = "cko0_rstgrp"; - sirf,function = "cko0_rst"; + cko0_pins_a: cko0@0 { + cko0 { + sirf,pins = "cko0grp"; + sirf,function = "cko0"; }; }; - cko1_rst_pins_a: cko1_rst@0 { - cko1_rst { - sirf,pins = "cko1_rstgrp"; - sirf,function = "cko1_rst"; + cko1_pins_a: cko1@0 { + cko1 { + sirf,pins = "cko1grp"; + sirf,function = "cko1"; }; }; }; diff --git a/arch/arm/boot/dts/prima2.dtsi b/arch/arm/boot/dts/prima2.dtsi index 05e9489cf95..bbeb623fc2c 100644 --- a/arch/arm/boot/dts/prima2.dtsi +++ b/arch/arm/boot/dts/prima2.dtsi @@ -515,16 +515,16 @@ sirf,function = "pulse_count"; }; }; - cko0_rst_pins_a: cko0_rst@0 { - cko0_rst { - sirf,pins = "cko0_rstgrp"; - sirf,function = "cko0_rst"; + cko0_pins_a: cko0@0 { + cko0 { + sirf,pins = "cko0grp"; + sirf,function = "cko0"; }; }; - cko1_rst_pins_a: cko1_rst@0 { - cko1_rst { - sirf,pins = "cko1_rstgrp"; - sirf,function = "cko1_rst"; + cko1_pins_a: cko1@0 { + cko1 { + sirf,pins = "cko1grp"; + sirf,function = "cko1"; }; }; }; -- cgit v1.2.3 From b5c745fb75b7e5ab06e9c99d63427595a234cc89 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 22 Jul 2013 09:56:54 +0300 Subject: ASoC: core: double free in snd_soc_add_platform() There are three callers for this function, and none of them want it to free platform for them. It leads to a double free. Signed-off-by: Dan Carpenter Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 0ec070cf723..d82ee386eab 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3908,10 +3908,8 @@ int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, { /* create platform component name */ platform->name = fmt_single_name(dev, &platform->id); - if (platform->name == NULL) { - kfree(platform); + if (platform->name == NULL) return -ENOMEM; - } platform->dev = dev; platform->driver = platform_drv; -- cgit v1.2.3 From 647ab784c507763bfda79155f125b6edd1244806 Mon Sep 17 00:00:00 2001 From: Richard Zhao Date: Sun, 21 Jul 2013 10:34:09 +0800 Subject: ASoC: tegra: correct playback_dma_data setup The errors were caused by copy/paste mistake in below commit since v3.10: 3489d50 ASoC: tegra: Use common DAI DMA data struct It also corrects slave_id initialization in tegra20_ac97 driver. Signed-off-by: Richard Zhao Acked-by: Stephen Warren Acked-by: Lucas Stach Signed-off-by: Mark Brown Cc: # 3.10 --- sound/soc/tegra/tegra20_ac97.c | 6 +++--- sound/soc/tegra/tegra20_spdif.c | 4 ++-- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/sound/soc/tegra/tegra20_ac97.c b/sound/soc/tegra/tegra20_ac97.c index e58233f7df6..6c486625321 100644 --- a/sound/soc/tegra/tegra20_ac97.c +++ b/sound/soc/tegra/tegra20_ac97.c @@ -389,9 +389,9 @@ static int tegra20_ac97_platform_probe(struct platform_device *pdev) ac97->capture_dma_data.slave_id = of_dma[1]; ac97->playback_dma_data.addr = mem->start + TEGRA20_AC97_FIFO_TX1; - ac97->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - ac97->capture_dma_data.maxburst = 4; - ac97->capture_dma_data.slave_id = of_dma[0]; + ac97->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + ac97->playback_dma_data.maxburst = 4; + ac97->playback_dma_data.slave_id = of_dma[1]; ret = tegra_asoc_utils_init(&ac97->util_data, &pdev->dev); if (ret) diff --git a/sound/soc/tegra/tegra20_spdif.c b/sound/soc/tegra/tegra20_spdif.c index 5eaa12cdc6e..551b3c93ce9 100644 --- a/sound/soc/tegra/tegra20_spdif.c +++ b/sound/soc/tegra/tegra20_spdif.c @@ -323,8 +323,8 @@ static int tegra20_spdif_platform_probe(struct platform_device *pdev) } spdif->playback_dma_data.addr = mem->start + TEGRA20_SPDIF_DATA_OUT; - spdif->capture_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - spdif->capture_dma_data.maxburst = 4; + spdif->playback_dma_data.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; + spdif->playback_dma_data.maxburst = 4; spdif->playback_dma_data.slave_id = dmareq->start; pm_runtime_enable(&pdev->dev); -- cgit v1.2.3 From 90625070c4253377025878c4e82feed8b35c7116 Mon Sep 17 00:00:00 2001 From: Luiz Angelo Daros de Luca Date: Mon, 1 Jul 2013 23:56:25 -0300 Subject: usb: serial: cp210x: Add USB ID for Netgear Switches embedded serial adapter This adds NetGear Managed Switch M4100 series, M5300 series, M7100 series USB ID (0846:0110) to the cp210x driver. Without this, the serial adapter is not recognized in Linux. Description was obtained from an Netgear Eng. Signed-off-by: Luiz Angelo Daros de Luca Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/cp210x.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index d6ef2f8da37..55852fe1321 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -53,6 +53,7 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x0489, 0xE000) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */ { USB_DEVICE(0x0489, 0xE003) }, /* Pirelli Broadband S.p.A, DP-L10 SIP/GSM Mobile */ { USB_DEVICE(0x0745, 0x1000) }, /* CipherLab USB CCD Barcode Scanner 1000 */ + { USB_DEVICE(0x0846, 0x1100) }, /* NetGear Managed Switch M4100 series, M5300 series, M7100 series */ { USB_DEVICE(0x08e6, 0x5501) }, /* Gemalto Prox-PU/CU contactless smartcard reader */ { USB_DEVICE(0x08FD, 0x000A) }, /* Digianswer A/S , ZigBee/802.15.4 MAC Device */ { USB_DEVICE(0x0BED, 0x1100) }, /* MEI (TM) Cashflow-SC Bill/Voucher Acceptor */ -- cgit v1.2.3 From e7a6121f4929c17215f0cdca3726f4bf3e4e9529 Mon Sep 17 00:00:00 2001 From: Ren Bigcren Date: Tue, 2 Jul 2013 13:34:30 +0200 Subject: USB: storage: Add MicroVault Flash Drive to unusual_devs The device report an error capacity when read_capacity_16(). Using read_capacity_10() can get the correct capacity. Signed-off-by: Ren Bigcren Cc: Matthew Dharm Signed-off-by: Oskar Andero Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/unusual_devs.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 1799335288b..c015f2c1672 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -665,6 +665,13 @@ UNUSUAL_DEV( 0x054c, 0x016a, 0x0000, 0x9999, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_FIX_INQUIRY ), +/* Submitted by Ren Bigcren */ +UNUSUAL_DEV( 0x054c, 0x02a5, 0x0100, 0x0100, + "Sony Corp.", + "MicroVault Flash Drive", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_NO_READ_CAPACITY_16 ), + /* floppy reports multiple luns */ UNUSUAL_DEV( 0x055d, 0x2020, 0x0000, 0x0210, "SAMSUNG", -- cgit v1.2.3 From 58fc90db8261b571c026bb8bf23aad48a7233118 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B3hann=20B=2E=20Gu=C3=B0mundsson?= Date: Thu, 4 Jul 2013 21:47:52 +0000 Subject: USB: misc: Add Manhattan Hi-Speed USB DVI Converter to sisusbvga MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Jóhann B. Guðmundsson Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/sisusbvga/sisusb.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c index c21386ec5d3..de98906f786 100644 --- a/drivers/usb/misc/sisusbvga/sisusb.c +++ b/drivers/usb/misc/sisusbvga/sisusb.c @@ -3247,6 +3247,7 @@ static const struct usb_device_id sisusb_table[] = { { USB_DEVICE(0x0711, 0x0903) }, { USB_DEVICE(0x0711, 0x0918) }, { USB_DEVICE(0x0711, 0x0920) }, + { USB_DEVICE(0x0711, 0x0950) }, { USB_DEVICE(0x182d, 0x021c) }, { USB_DEVICE(0x182d, 0x0269) }, { } -- cgit v1.2.3 From c38e83b6cc2adf80e3f091fd92cfbeacc9748347 Mon Sep 17 00:00:00 2001 From: Daniil Bolsun Date: Fri, 19 Jul 2013 10:21:23 +0300 Subject: USB: option: append Petatel NP10T device to GSM modems list This patch was tested on 3.10.1 kernel. Same models of Petatel NP10T modems have different device IDs. Unfortunately they have no additional revision information on a board which may treat them as different devices. Currently I've seen only two NP10T devices with various IDs. Possibly Petatel NP10T list will be appended upon devices with new IDs will appear. Signed-off-by: Daniil Bolsun Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 5dd857de05b..418746b557a 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -444,7 +444,8 @@ static void option_instat_callback(struct urb *urb); /* Hyundai Petatel Inc. products */ #define PETATEL_VENDOR_ID 0x1ff4 -#define PETATEL_PRODUCT_NP10T 0x600e +#define PETATEL_PRODUCT_NP10T_600A 0x600a +#define PETATEL_PRODUCT_NP10T_600E 0x600e /* TP-LINK Incorporated products */ #define TPLINK_VENDOR_ID 0x2357 @@ -1329,7 +1330,8 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM2, 0xff, 0x02, 0x01) }, { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM2, 0xff, 0x00, 0x00) }, { USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MEN200) }, - { USB_DEVICE(PETATEL_VENDOR_ID, PETATEL_PRODUCT_NP10T) }, + { USB_DEVICE(PETATEL_VENDOR_ID, PETATEL_PRODUCT_NP10T_600A) }, + { USB_DEVICE(PETATEL_VENDOR_ID, PETATEL_PRODUCT_NP10T_600E) }, { USB_DEVICE(TPLINK_VENDOR_ID, TPLINK_PRODUCT_MA180), .driver_info = (kernel_ulong_t)&net_intf4_blacklist }, { USB_DEVICE(CHANGHONG_VENDOR_ID, CHANGHONG_PRODUCT_CH690) }, -- cgit v1.2.3 From b579fa52f6be0b4157ca9cc5e94d44a2c89a7e95 Mon Sep 17 00:00:00 2001 From: Barry Grussling Date: Fri, 19 Jul 2013 14:46:12 -0700 Subject: usb: cp210x support SEL C662 Vendor/Device This patch adds support for the Schweitzer Engineering Laboratories C662 USB cable based off the CP210x driver. Signed-off-by: Barry Grussling Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/cp210x.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 55852fe1321..f68024ba726 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -149,6 +149,7 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x17F4, 0xAAAA) }, /* Wavesense Jazz blood glucose meter */ { USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */ { USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */ + { USB_DEVICE(0x1ADB, 0x0001) }, /* Schweitzer Engineering C662 Cable */ { USB_DEVICE(0x1BE3, 0x07A6) }, /* WAGO 750-923 USB Service Cable */ { USB_DEVICE(0x1E29, 0x0102) }, /* Festo CPX-USB */ { USB_DEVICE(0x1E29, 0x0501) }, /* Festo CMSP */ -- cgit v1.2.3 From 7681156982026ebf7eafd7301eb0374d7648d068 Mon Sep 17 00:00:00 2001 From: Sami Rahman Date: Mon, 8 Jul 2013 14:28:55 -0400 Subject: USB: cp210x: add MMB and PI ZigBee USB Device Support Added support for MMB Networks and Planet Innovation Ingeni ZigBee USB devices using customized Silicon Labs' CP210x.c USB to UART bridge drivers with PIDs: 88A4, 88A5. Signed-off-by: Sami Rahman Tested-by: Sami Rahman Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/cp210x.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index f68024ba726..0eae4ba3760 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -119,6 +119,8 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10C4, 0x85F8) }, /* Virtenio Preon32 */ { USB_DEVICE(0x10C4, 0x8664) }, /* AC-Services CAN-IF */ { USB_DEVICE(0x10C4, 0x8665) }, /* AC-Services OBD-IF */ + { USB_DEVICE(0x10C4, 0x88A4) }, /* MMB Networks ZigBee USB Device */ + { USB_DEVICE(0x10C4, 0x88A5) }, /* Planet Innovation Ingeni ZigBee USB Device */ { USB_DEVICE(0x10C4, 0xEA60) }, /* Silicon Labs factory default */ { USB_DEVICE(0x10C4, 0xEA61) }, /* Silicon Labs factory default */ { USB_DEVICE(0x10C4, 0xEA70) }, /* Silicon Labs factory default */ -- cgit v1.2.3 From 47a64a13d54f6c669b00542848d5550be3d3310e Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Tue, 9 Jul 2013 17:03:50 +0300 Subject: USB: EHCI: Fix resume signalling on remote wakeup Set the ehci->resuming flag for the port we receive a remote wakeup on so that resume signalling can be completed. Without this, the root hub timer will not fire again to check if the resume was completed and there will be a never-ending wait on on the port. This effect is only observed if the HUB IRQ IN does not come after we have initiated the port resume. Signed-off-by: Roger Quadros Cc: stable Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ehci-hub.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index 2b702772d04..6dce37555c4 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -874,6 +874,7 @@ static int ehci_hub_control ( ehci->reset_done[wIndex] = jiffies + msecs_to_jiffies(20); usb_hcd_start_port_resume(&hcd->self, wIndex); + set_bit(wIndex, &ehci->resuming_ports); /* check the port again */ mod_timer(&ehci_to_hcd(ehci)->rh_timer, ehci->reset_done[wIndex]); -- cgit v1.2.3 From a0062d4e3a0a9cf3ba6a91bca7e66ec89defc228 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Thu, 11 Jul 2013 11:34:12 +0100 Subject: MAINTAINERS: Remove Grant Likely Unfortunately, I'm no longer to spend the time needed on maintainership. It is time for me to step aside and pass maintainership to other engineers. I'm not disappearing from Linux development, but it would be irresponsible for me to hold onto a job that I am unable to do. v2: Leave my name on devicetree core code maintainership. Rob NAKed that part of the patch. :) Signed-off-by: Grant Likely Cc: Linux Walleij Cc: Mark Brown Cc: Rob Herring --- MAINTAINERS | 5 ----- 1 file changed, 5 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index bf61e04291a..844d7e81b01 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3622,11 +3622,9 @@ F: drivers/isdn/gigaset/ F: include/uapi/linux/gigaset_dev.h GPIO SUBSYSTEM -M: Grant Likely M: Linus Walleij S: Maintained L: linux-gpio@vger.kernel.org -T: git git://git.secretlab.ca/git/linux-2.6.git F: Documentation/gpio.txt F: drivers/gpio/ F: include/linux/gpio* @@ -4472,8 +4470,6 @@ F: drivers/irqchip/ IRQ DOMAINS (IRQ NUMBER MAPPING LIBRARY) M: Benjamin Herrenschmidt -M: Grant Likely -T: git git://git.secretlab.ca/git/linux-2.6.git irqdomain/next S: Maintained F: Documentation/IRQ-domain.txt F: include/linux/irqdomain.h @@ -7746,7 +7742,6 @@ F: drivers/clk/spear/ SPI SUBSYSTEM M: Mark Brown -M: Grant Likely L: linux-spi@vger.kernel.org T: git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git Q: http://patchwork.kernel.org/project/spi-devel-general/list/ -- cgit v1.2.3 From d0fb18c5c0caf2ed0eecf3d0145450ae708ed75a Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Fri, 19 Jul 2013 20:10:12 -0700 Subject: MAINTAINERS: Change device tree mailing list New list on vger.kernel.org. The old list was a pain to moderate. Signed-off-by: Grant Likely --- MAINTAINERS | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index 844d7e81b01..bc286e44b57 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5882,7 +5882,7 @@ OMAP DEVICE TREE SUPPORT M: Benoît Cousson M: Tony Lindgren L: linux-omap@vger.kernel.org -L: devicetree-discuss@lists.ozlabs.org (moderated for non-subscribers) +L: devicetree@vger.kernel.org S: Maintained F: arch/arm/boot/dts/*omap* F: arch/arm/boot/dts/*am3* @@ -6046,7 +6046,7 @@ F: drivers/i2c/busses/i2c-ocores.c OPEN FIRMWARE AND FLATTENED DEVICE TREE M: Grant Likely M: Rob Herring -L: devicetree-discuss@lists.ozlabs.org (moderated for non-subscribers) +L: devicetree@vger.kernel.org W: http://fdt.secretlab.ca T: git git://git.secretlab.ca/git/linux-2.6.git S: Maintained -- cgit v1.2.3 From f882820556af33b5aee5b9f0ba459620a9ab1c22 Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Fri, 19 Jul 2013 18:57:39 -0700 Subject: MAINTAINERS: Refactor device tree maintainership Device tree bindings require a lot more attention than they used to. We've got a group of volunteers willing to take over maintaining bindings. This patch adds them to the MAINTAINERS file. This group still needs to work out a process for maintainership and how they are going to work together. I recommend that they set up a shared tree on git.kernel.org that they each have commit access to similar to the tip tree or the arm-soc tree, but it is up to them. Signed-off-by: Grant Likely Cc: Pawel Moll Cc: Mark Rutland Cc: Stephen Warren Cc: Ian Campbell Cc: Rob Herring Acked-by: Olof Johansson Acked-by: Linus Walleij --- MAINTAINERS | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index bc286e44b57..02064ac6b75 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6050,13 +6050,24 @@ L: devicetree@vger.kernel.org W: http://fdt.secretlab.ca T: git git://git.secretlab.ca/git/linux-2.6.git S: Maintained -F: Documentation/devicetree -F: drivers/of +F: drivers/of/ F: include/linux/of*.h -F: scripts/dtc +F: scripts/dtc/ K: of_get_property K: of_match_table +OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS +M: Rob Herring +M: Pawel Moll +M: Mark Rutland +M: Stephen Warren +M: Ian Campbell +L: devicetree@vger.kernel.org +S: Maintained +F: Documentation/devicetree/ +F: arch/*/boot/dts/ +F: include/dt-bindings/ + OPENRISC ARCHITECTURE M: Jonas Bonn W: http://openrisc.net -- cgit v1.2.3 From cdeb89943bfc301aa5711cbb5edc2c86e6630dab Mon Sep 17 00:00:00 2001 From: Grant Likely Date: Mon, 22 Jul 2013 01:38:32 +0100 Subject: MAINTAINERS: Fix incorrect status tag When I removed myself from the xilinx drivers I used the wrong tag. Fix it. Signed-off-by: Grant Likely --- MAINTAINERS | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index 02064ac6b75..ece549058c3 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4986,7 +4986,7 @@ F: arch/powerpc/platforms/44x/ LINUX FOR POWERPC EMBEDDED XILINX VIRTEX L: linuxppc-dev@lists.ozlabs.org -S: Unmaintained +S: Orphan F: arch/powerpc/*/*virtex* F: arch/powerpc/*/*/*virtex* @@ -9294,7 +9294,7 @@ S: Maintained F: drivers/net/ethernet/xilinx/xilinx_axienet* XILINX SYSTEMACE DRIVER -S: Unmaintained +S: Orphan F: drivers/block/xsysace.c XILINX UARTLITE SERIAL DRIVER -- cgit v1.2.3 From 7d4ddbaa1466f0c06bbca8ad702f4f4b313b8f33 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Wed, 1 May 2013 10:53:54 +0200 Subject: of: add vendor prefix for Qualcomm Atheros, Inc. This prefix will be used in various compatible properties for the devices from Qualcomm Atheros, Inc. Cc: Luis R. Rodriguez Signed-off-by: Gabor Juhos Signed-off-by: Grant Likely --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index d5a79caec14..1e4aa2e2b61 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -43,6 +43,7 @@ nxp NXP Semiconductors onnn ON Semiconductor Corp. picochip Picochip Ltd powervr PowerVR (deprecated, use img) +qca Qualcomm Atheros, Inc. qcom Qualcomm, Inc. ralink Mediatek/Ralink Technology Corp. ramtron Ramtron International -- cgit v1.2.3 From cfd1ee3e37360ac6ec8c737e63e70c5d583f1e51 Mon Sep 17 00:00:00 2001 From: Zhangfei Gao Date: Mon, 17 Jun 2013 13:04:59 +0800 Subject: of: add vendor prefixes for hisilicon Signed-off-by: Zhangfei Gao Signed-off-by: Grant Likely --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 1e4aa2e2b61..366ce9b8724 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -26,6 +26,7 @@ est ESTeem Wireless Modems fsl Freescale Semiconductor GEFanuc GE Fanuc Intelligent Platforms Embedded Systems, Inc. gef GE Fanuc Intelligent Platforms Embedded Systems, Inc. +hisilicon Hisilicon Limited. hp Hewlett Packard ibm International Business Machines (IBM) idt Integrated Device Technologies, Inc. -- cgit v1.2.3 From c0cdfaa0a5e7a346ac2f661f63f543cdc5f7cbbe Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sun, 23 Jun 2013 15:50:07 +0800 Subject: of/irq: Avoid calling list_first_entry() for empty list list_first_entry() expects the list is not empty, we need to check if list is empty before calling list_first_entry(). Thus use list_first_entry_or_null() instead of list_first_entry(). Signed-off-by: Axel Lin Signed-off-by: Grant Likely --- drivers/of/irq.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/of/irq.c b/drivers/of/irq.c index a3c1c5aae6a..5c645c7227b 100644 --- a/drivers/of/irq.c +++ b/drivers/of/irq.c @@ -482,8 +482,9 @@ void __init of_irq_init(const struct of_device_id *matches) } /* Get the next pending parent that might have children */ - desc = list_first_entry(&intc_parent_list, typeof(*desc), list); - if (list_empty(&intc_parent_list) || !desc) { + desc = list_first_entry_or_null(&intc_parent_list, + typeof(*desc), list); + if (!desc) { pr_err("of_irq_init: children remain, but no parents\n"); break; } -- cgit v1.2.3 From cf9e2368655d86cd800e4d9fe65a407b39d29373 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Thu, 18 Jul 2013 12:24:10 +0200 Subject: of/irq: init struct resource to 0 in of_irq_to_resource() It almost does not matter because most users use only the ->start member of the struct. However if this struct is passed to a platform device which is then added via platform_device_add() then the ->parent member is also used. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Grant Likely --- drivers/of/irq.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/of/irq.c b/drivers/of/irq.c index 5c645c7227b..1264923ade0 100644 --- a/drivers/of/irq.c +++ b/drivers/of/irq.c @@ -345,6 +345,7 @@ int of_irq_to_resource(struct device_node *dev, int index, struct resource *r) if (r && irq) { const char *name = NULL; + memset(r, 0, sizeof(*r)); /* * Get optional "interrupts-names" property to add a name * to the resource. -- cgit v1.2.3 From 74b843512906e60be24ed6aafa2fa2876f294fab Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Tue, 9 Jul 2013 16:27:24 +0200 Subject: pinctrl: sh-pfc: fix SDHI0 VccQ regulator on sh73a0 with DT The PFC pinctrl driver on sh73a0 is also regiatering a VccQ regulator for SDHI0. However, its consumers list only included the platform-data based SDHI device name. When booted with DT SDHI0 couldn't enable VccQ and therefore was unusable. Fix this by adding a consumer with DT-based name. Signed-off-by: Guennadi Liakhovetski Acked-by: Simon Horman Acked-by: Laurent Pinchart Signed-off-by: Linus Walleij --- drivers/pinctrl/sh-pfc/pfc-sh73a0.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pinctrl/sh-pfc/pfc-sh73a0.c b/drivers/pinctrl/sh-pfc/pfc-sh73a0.c index 7956df58d75..31f7d0e04aa 100644 --- a/drivers/pinctrl/sh-pfc/pfc-sh73a0.c +++ b/drivers/pinctrl/sh-pfc/pfc-sh73a0.c @@ -3785,6 +3785,7 @@ static const struct regulator_desc sh73a0_vccq_mc0_desc = { static struct regulator_consumer_supply sh73a0_vccq_mc0_consumers[] = { REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.0"), + REGULATOR_SUPPLY("vqmmc", "ee100000.sdhi"), }; static const struct regulator_init_data sh73a0_vccq_mc0_init_data = { -- cgit v1.2.3 From 745a39a9e6b2901cd341af01fc9bac78a9649e23 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 18 Jul 2013 09:24:37 -0400 Subject: drm/radeon: wait for 3D idle before using CP DMA MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Make sure the 3D engine is idle before using CP DMA for bo copies. Signed-off-by: Alex Deucher Cc: Marek Olšák --- drivers/gpu/drm/radeon/r600.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index 393880a0941..10f712e3700 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -3166,7 +3166,7 @@ int r600_copy_cpdma(struct radeon_device *rdev, size_in_bytes = (num_gpu_pages << RADEON_GPU_PAGE_SHIFT); num_loops = DIV_ROUND_UP(size_in_bytes, 0x1fffff); - r = radeon_ring_lock(rdev, ring, num_loops * 6 + 21); + r = radeon_ring_lock(rdev, ring, num_loops * 6 + 24); if (r) { DRM_ERROR("radeon: moving bo (%d).\n", r); radeon_semaphore_free(rdev, &sem, NULL); @@ -3181,6 +3181,9 @@ int r600_copy_cpdma(struct radeon_device *rdev, radeon_semaphore_free(rdev, &sem, NULL); } + radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1)); + radeon_ring_write(ring, (WAIT_UNTIL - PACKET3_SET_CONFIG_REG_OFFSET) >> 2); + radeon_ring_write(ring, WAIT_3D_IDLE_bit); for (i = 0; i < num_loops; i++) { cur_size_in_bytes = size_in_bytes; if (cur_size_in_bytes > 0x1fffff) -- cgit v1.2.3 From 3e3e53f86bee87bb14474213c879595605e35112 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 18 Jul 2013 13:11:56 -0400 Subject: drm/radeon/vm: only align the pt base to 32k fixes: https://bugs.freedesktop.org/show_bug.cgi?id=67016 Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_gart.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c index d9d31a38327..6a51d943ccf 100644 --- a/drivers/gpu/drm/radeon/radeon_gart.c +++ b/drivers/gpu/drm/radeon/radeon_gart.c @@ -466,7 +466,7 @@ int radeon_vm_manager_init(struct radeon_device *rdev) size += rdev->vm_manager.max_pfn * 8; size *= 2; r = radeon_sa_bo_manager_init(rdev, &rdev->vm_manager.sa_manager, - RADEON_VM_PTB_ALIGN(size), + RADEON_GPU_PAGE_ALIGN(size), RADEON_VM_PTB_ALIGN_SIZE, RADEON_GEM_DOMAIN_VRAM); if (r) { @@ -621,7 +621,7 @@ int radeon_vm_alloc_pt(struct radeon_device *rdev, struct radeon_vm *vm) } retry: - pd_size = RADEON_VM_PTB_ALIGN(radeon_vm_directory_size(rdev)); + pd_size = radeon_vm_directory_size(rdev); r = radeon_sa_bo_new(rdev, &rdev->vm_manager.sa_manager, &vm->page_directory, pd_size, RADEON_VM_PTB_ALIGN_SIZE, false); @@ -953,8 +953,8 @@ static int radeon_vm_update_pdes(struct radeon_device *rdev, retry: r = radeon_sa_bo_new(rdev, &rdev->vm_manager.sa_manager, &vm->page_tables[pt_idx], - RADEON_VM_PTB_ALIGN(RADEON_VM_PTE_COUNT * 8), - RADEON_VM_PTB_ALIGN_SIZE, false); + RADEON_VM_PTE_COUNT * 8, + RADEON_GPU_PAGE_SIZE, false); if (r == -ENOMEM) { r = radeon_vm_evict(rdev, vm); -- cgit v1.2.3 From 34be8c9af7b8728465963740fc11136ae90dfc36 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 18 Jul 2013 11:13:53 -0400 Subject: drm/radeon: fix endian issues with DP handling (v3) The atom interpreter expects data in LE format, so swap the message buffer as apprioriate. v2: properly handle non-dw aligned byte counts. v3: properly handle remainder Signed-off-by: Alex Deucher Cc: Dong He Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/atombios_dp.c | 43 ++++++++++++++++++++++++++++++++---- 1 file changed, 39 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c index 064023bed48..32501f6ec99 100644 --- a/drivers/gpu/drm/radeon/atombios_dp.c +++ b/drivers/gpu/drm/radeon/atombios_dp.c @@ -44,6 +44,41 @@ static char *pre_emph_names[] = { }; /***** radeon AUX functions *****/ + +/* Atom needs data in little endian format + * so swap as appropriate when copying data to + * or from atom. Note that atom operates on + * dw units. + */ +static void radeon_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le) +{ +#ifdef __BIG_ENDIAN + u8 src_tmp[20], dst_tmp[20]; /* used for byteswapping */ + u32 *dst32, *src32; + int i; + + memcpy(src_tmp, src, num_bytes); + src32 = (u32 *)src_tmp; + dst32 = (u32 *)dst_tmp; + if (to_le) { + for (i = 0; i < ((num_bytes + 3) / 4); i++) + dst32[i] = cpu_to_le32(src32[i]); + memcpy(dst, dst_tmp, num_bytes); + } else { + u8 dws = num_bytes & ~3; + for (i = 0; i < ((num_bytes + 3) / 4); i++) + dst32[i] = le32_to_cpu(src32[i]); + memcpy(dst, dst_tmp, dws); + if (num_bytes % 4) { + for (i = 0; i < (num_bytes % 4); i++) + dst[dws+i] = dst_tmp[dws+i]; + } + } +#else + memcpy(dst, src, num_bytes); +#endif +} + union aux_channel_transaction { PROCESS_AUX_CHANNEL_TRANSACTION_PS_ALLOCATION v1; PROCESS_AUX_CHANNEL_TRANSACTION_PARAMETERS_V2 v2; @@ -65,10 +100,10 @@ static int radeon_process_aux_ch(struct radeon_i2c_chan *chan, base = (unsigned char *)(rdev->mode_info.atom_context->scratch + 1); - memcpy(base, send, send_bytes); + radeon_copy_swap(base, send, send_bytes, true); - args.v1.lpAuxRequest = 0 + 4; - args.v1.lpDataOut = 16 + 4; + args.v1.lpAuxRequest = cpu_to_le16((u16)(0 + 4)); + args.v1.lpDataOut = cpu_to_le16((u16)(16 + 4)); args.v1.ucDataOutLen = 0; args.v1.ucChannelID = chan->rec.i2c_id; args.v1.ucDelay = delay / 10; @@ -102,7 +137,7 @@ static int radeon_process_aux_ch(struct radeon_i2c_chan *chan, recv_bytes = recv_size; if (recv && recv_size) - memcpy(recv, base + 16, recv_bytes); + radeon_copy_swap(recv, base + 16, recv_bytes, false); return recv_bytes; } -- cgit v1.2.3 From f7929f34fa0e0bb6736a2484fdc07d77a1653081 Mon Sep 17 00:00:00 2001 From: Ondrej Zary Date: Fri, 19 Jul 2013 21:08:48 +0200 Subject: drm/radeon: Another card with wrong primary dac adj Hello, got another card with "too bright" problem: Sapphire Radeon VE 7000 DDR (VGA+S-Video) lspci -vnn: 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI RV100 QY [Radeon 7000/VE] [1002:5159] (prog-if 00 [VGA controller]) Subsystem: PC Partner Limited Sapphire Radeon VE 7000 DDR [174b:7c28] The patch below fixes the problem for this card. But I don't like the blacklist, couldn't some heuristic be used instead? The interesting thing is that the manufacturer is the same as the other card needing the same quirk. I wonder how many different types are broken this way. The "wrong" ps2_pdac_adj value that comes from BIOS on this card is 0x300. ==================== drm/radeon: Add primary dac adj quirk for Sapphire Radeon VE 7000 DDR Values from BIOS are wrong, causing too bright colors. Use default values instead. Signed-off-by: Ondrej Zary Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_combios.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 78edadc9e86..8528b81cd64 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -971,10 +971,14 @@ struct radeon_encoder_primary_dac *radeon_combios_get_primary_dac_info(struct } /* quirks */ + /* Radeon 7000 (RV100) */ + if (((dev->pdev->device == 0x5159) && + (dev->pdev->subsystem_vendor == 0x174B) && + (dev->pdev->subsystem_device == 0x7c28)) || /* Radeon 9100 (R200) */ - if ((dev->pdev->device == 0x514D) && + ((dev->pdev->device == 0x514D) && (dev->pdev->subsystem_vendor == 0x174B) && - (dev->pdev->subsystem_device == 0x7149)) { + (dev->pdev->subsystem_device == 0x7149))) { /* vbios value is bad, use the default */ found = 0; } -- cgit v1.2.3 From 03ed8cf9b28d886c64c7e705c7bb1a365fd8fb95 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 19 Jul 2013 17:44:43 -0400 Subject: drm/radeon: improve dac adjust heuristics for legacy pdac Hopefully avoid more quirks in the future due to bogus vbios dac data. Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_combios.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 8528b81cd64..485f82c9929 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -965,8 +965,10 @@ struct radeon_encoder_primary_dac *radeon_combios_get_primary_dac_info(struct dac = RBIOS8(dac_info + 0x3) & 0xf; p_dac->ps2_pdac_adj = (bg << 8) | (dac); } - /* if the values are all zeros, use the table */ - if (p_dac->ps2_pdac_adj) + /* if the values are zeros, use the table */ + if ((dac == 0) || (bg == 0)) + found = 0; + else found = 1; } -- cgit v1.2.3 From cef1d00cd56f600121ad121875655ad410a001b8 Mon Sep 17 00:00:00 2001 From: Mark Kettenis Date: Sun, 21 Jul 2013 16:44:09 -0400 Subject: drm/radeon: fix combios tables on older cards Noticed that my old Radeon 7500 hung after printing drm: GPU not posted. posting now... when it wasn't selected as the primary card the BIOS. Some digging revealed that it was hanging in combios_parse_mmio_table() while parsing the ASIC INIT 3 table. Looking at the BIOS ROM for the card, it becomes obvious that there is no ASIC INIT 3 table in the BIOS. The code is just processing random garbage. No surprise it hangs! Why do I say that there is no ASIC INIT 3 table is the BIOS? This table is found through the MISC INFO table. The MISC INFO table can be found at offset 0x5e in the COMBIOS header. But the header is smaller than that. The COMBIOS header starts at offset 0x126. The standard PCI Data Structure (the bit that starts with 'PCIR') lives at offset 0x180. That means that the COMBIOS header can not be larger than 0x5a bytes and therefore cannot contain a MISC INFO table. I looked at a dozen or so BIOS images, some my own, some downloaded from: It is fairly obvious that the size of the COMBIOS header can be found at offset 0x6 of the header. Not sure if it is a 16-bit number or just an 8-bit number, but that doesn't really matter since the tables seems to be always smaller than 256 bytes. So I think combios_get_table_offset() should check if the requested table is present. This can be done by checking the offset against the size of the header. See the diff below. The diff is against the WIP OpenBSD codebase that roughly corresponds to Linux 3.8.13 at this point. But I don't think this bit of the code changed much since then. For what it is worth: Signed-off-by: Mark Kettenis Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_combios.c | 145 +++++++++----------------------- 1 file changed, 41 insertions(+), 104 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 485f82c9929..68ce3605601 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/drm/radeon/radeon_combios.c @@ -147,7 +147,7 @@ static uint16_t combios_get_table_offset(struct drm_device *dev, enum radeon_combios_table_offset table) { struct radeon_device *rdev = dev->dev_private; - int rev; + int rev, size; uint16_t offset = 0, check_offset; if (!rdev->bios) @@ -156,174 +156,106 @@ static uint16_t combios_get_table_offset(struct drm_device *dev, switch (table) { /* absolute offset tables */ case COMBIOS_ASIC_INIT_1_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0xc); - if (check_offset) - offset = check_offset; + check_offset = 0xc; break; case COMBIOS_BIOS_SUPPORT_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x14); - if (check_offset) - offset = check_offset; + check_offset = 0x14; break; case COMBIOS_DAC_PROGRAMMING_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x2a); - if (check_offset) - offset = check_offset; + check_offset = 0x2a; break; case COMBIOS_MAX_COLOR_DEPTH_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x2c); - if (check_offset) - offset = check_offset; + check_offset = 0x2c; break; case COMBIOS_CRTC_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x2e); - if (check_offset) - offset = check_offset; + check_offset = 0x2e; break; case COMBIOS_PLL_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x30); - if (check_offset) - offset = check_offset; + check_offset = 0x30; break; case COMBIOS_TV_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x32); - if (check_offset) - offset = check_offset; + check_offset = 0x32; break; case COMBIOS_DFP_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x34); - if (check_offset) - offset = check_offset; + check_offset = 0x34; break; case COMBIOS_HW_CONFIG_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x36); - if (check_offset) - offset = check_offset; + check_offset = 0x36; break; case COMBIOS_MULTIMEDIA_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x38); - if (check_offset) - offset = check_offset; + check_offset = 0x38; break; case COMBIOS_TV_STD_PATCH_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x3e); - if (check_offset) - offset = check_offset; + check_offset = 0x3e; break; case COMBIOS_LCD_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x40); - if (check_offset) - offset = check_offset; + check_offset = 0x40; break; case COMBIOS_MOBILE_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x42); - if (check_offset) - offset = check_offset; + check_offset = 0x42; break; case COMBIOS_PLL_INIT_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x46); - if (check_offset) - offset = check_offset; + check_offset = 0x46; break; case COMBIOS_MEM_CONFIG_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x48); - if (check_offset) - offset = check_offset; + check_offset = 0x48; break; case COMBIOS_SAVE_MASK_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x4a); - if (check_offset) - offset = check_offset; + check_offset = 0x4a; break; case COMBIOS_HARDCODED_EDID_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x4c); - if (check_offset) - offset = check_offset; + check_offset = 0x4c; break; case COMBIOS_ASIC_INIT_2_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x4e); - if (check_offset) - offset = check_offset; + check_offset = 0x4e; break; case COMBIOS_CONNECTOR_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x50); - if (check_offset) - offset = check_offset; + check_offset = 0x50; break; case COMBIOS_DYN_CLK_1_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x52); - if (check_offset) - offset = check_offset; + check_offset = 0x52; break; case COMBIOS_RESERVED_MEM_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x54); - if (check_offset) - offset = check_offset; + check_offset = 0x54; break; case COMBIOS_EXT_TMDS_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x58); - if (check_offset) - offset = check_offset; + check_offset = 0x58; break; case COMBIOS_MEM_CLK_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x5a); - if (check_offset) - offset = check_offset; + check_offset = 0x5a; break; case COMBIOS_EXT_DAC_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x5c); - if (check_offset) - offset = check_offset; + check_offset = 0x5c; break; case COMBIOS_MISC_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x5e); - if (check_offset) - offset = check_offset; + check_offset = 0x5e; break; case COMBIOS_CRT_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x60); - if (check_offset) - offset = check_offset; + check_offset = 0x60; break; case COMBIOS_INTEGRATED_SYSTEM_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x62); - if (check_offset) - offset = check_offset; + check_offset = 0x62; break; case COMBIOS_COMPONENT_VIDEO_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x64); - if (check_offset) - offset = check_offset; + check_offset = 0x64; break; case COMBIOS_FAN_SPEED_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x66); - if (check_offset) - offset = check_offset; + check_offset = 0x66; break; case COMBIOS_OVERDRIVE_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x68); - if (check_offset) - offset = check_offset; + check_offset = 0x68; break; case COMBIOS_OEM_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x6a); - if (check_offset) - offset = check_offset; + check_offset = 0x6a; break; case COMBIOS_DYN_CLK_2_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x6c); - if (check_offset) - offset = check_offset; + check_offset = 0x6c; break; case COMBIOS_POWER_CONNECTOR_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x6e); - if (check_offset) - offset = check_offset; + check_offset = 0x6e; break; case COMBIOS_I2C_INFO_TABLE: - check_offset = RBIOS16(rdev->bios_header_start + 0x70); - if (check_offset) - offset = check_offset; + check_offset = 0x70; break; /* relative offset tables */ case COMBIOS_ASIC_INIT_3_TABLE: /* offset from misc info */ @@ -439,11 +371,16 @@ static uint16_t combios_get_table_offset(struct drm_device *dev, } break; default: + check_offset = 0; break; } - return offset; + size = RBIOS8(rdev->bios_header_start + 0x6); + /* check absolute offset tables */ + if (table < COMBIOS_ASIC_INIT_3_TABLE && check_offset && check_offset < size) + offset = RBIOS16(rdev->bios_header_start + check_offset); + return offset; } bool radeon_combios_check_hardcoded_edid(struct radeon_device *rdev) -- cgit v1.2.3 From 42b9ab7ab798c1fc812bd2032cb506a93080130f Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Fri, 19 Jul 2013 15:56:41 +0900 Subject: libata: replace strict_strtol() with kstrtol() The usage of strict_strtol() is not preferred, because strict_strtol() is obsolete. Thus, kstrtol() should be used. Signed-off-by: Jingoo Han Signed-off-by: Tejun Heo --- drivers/ata/libata-scsi.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 83c08907e04..b1e880a3c3d 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -206,8 +206,10 @@ static ssize_t ata_scsi_park_store(struct device *device, unsigned long flags; int rc; - rc = strict_strtol(buf, 10, &input); - if (rc || input < -2) + rc = kstrtol(buf, 10, &input); + if (rc) + return rc; + if (input < -2) return -EINVAL; if (input > ATA_TMOUT_MAX_PARK) { rc = -EOVERFLOW; -- cgit v1.2.3 From 8cb440ab709fb1f7e3f71a6159ebab9403760472 Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine Date: Mon, 15 Jul 2013 10:14:26 +0200 Subject: pinctrl: pinctrl-single: fix compile warning when no CONFIG_PM This warning has been introduced by the commit 0f9bc4bcdf4f pinctrl: single: adopt pinctrl sleep mode management Signed-off-by: Jean-Francois Moine Acked-by: Tony Lindgren Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-single.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c index 6866548fab3..7323cca440b 100644 --- a/drivers/pinctrl/pinctrl-single.c +++ b/drivers/pinctrl/pinctrl-single.c @@ -1483,6 +1483,7 @@ static int pcs_add_gpio_func(struct device_node *node, struct pcs_device *pcs) return ret; } +#ifdef CONFIG_PM static int pinctrl_single_suspend(struct platform_device *pdev, pm_message_t state) { @@ -1505,6 +1506,7 @@ static int pinctrl_single_resume(struct platform_device *pdev) return pinctrl_force_default(pcs->pctl); } +#endif static int pcs_probe(struct platform_device *pdev) { -- cgit v1.2.3 From bb9696192826a7d9279caf872e95b41bc26c7eff Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 22 Jul 2013 16:53:36 -0400 Subject: libata: make it clear that sata_inic162x is experimental sata_inic162x never reached a state where it's reliable enough for production use and data corruption is a relatively common occurrence. Make the driver generate warning about the issues and mark the Kconfig option as experimental. If the situation doesn't improve, we'd be better off making it depend on CONFIG_BROKEN. Let's wait for several cycles and see if the kernel message draws any attention. Signed-off-by: Tejun Heo Reported-by: Martin Braure de Calignon Reported-by: Ben Hutchings Reported-by: risc4all@yahoo.com --- drivers/ata/Kconfig | 2 +- drivers/ata/sata_inic162x.c | 14 ++++++++++++++ 2 files changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index 80dc988f01e..5cddaf86cd0 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -107,7 +107,7 @@ config SATA_FSL If unsure, say N. config SATA_INIC162X - tristate "Initio 162x SATA support" + tristate "Initio 162x SATA support (Very Experimental)" depends on PCI help This option enables support for Initio 162x Serial ATA. diff --git a/drivers/ata/sata_inic162x.c b/drivers/ata/sata_inic162x.c index e4513174824..5c54d957370 100644 --- a/drivers/ata/sata_inic162x.c +++ b/drivers/ata/sata_inic162x.c @@ -6,6 +6,18 @@ * * This file is released under GPL v2. * + * **** WARNING **** + * + * This driver never worked properly and unfortunately data corruption is + * relatively common. There isn't anyone working on the driver and there's + * no support from the vendor. Do not use this driver in any production + * environment. + * + * http://thread.gmane.org/gmane.linux.debian.devel.bugs.rc/378525/focus=54491 + * https://bugzilla.kernel.org/show_bug.cgi?id=60565 + * + * ***************** + * * This controller is eccentric and easily locks up if something isn't * right. Documentation is available at initio's website but it only * documents registers (not programming model). @@ -807,6 +819,8 @@ static int inic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) ata_print_version_once(&pdev->dev, DRV_VERSION); + dev_alert(&pdev->dev, "inic162x support is broken with common data corruption issues and will be disabled by default, contact linux-ide@vger.kernel.org if in production use\n"); + /* alloc host */ host = ata_host_alloc_pinfo(&pdev->dev, ppi, NR_PORTS); hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL); -- cgit v1.2.3 From 2134ed4d614349b2b4e8d7bb593baa9179b8dd1e Mon Sep 17 00:00:00 2001 From: Dirk Brandewie Date: Thu, 18 Jul 2013 08:48:42 -0700 Subject: cpufreq / intel_pstate: Change to scale off of max P-state Change to using max P-state instead of max turbo P-state. This change resolves two issues. On a quiet system intel_pstate can fail to respond to a load change. On CPU SKUs that have a limited number of P-states and no turbo range intel_pstate fails to select the highest available P-state. This change is suitable for stable v3.9+ References: https://bugzilla.kernel.org/show_bug.cgi?id=59481 Reported-and-tested-by: Arjan van de Ven Reported-and-tested-by: dsmythies@telus.net Signed-off-by: Dirk Brandewie Acked-by: Viresh Kumar Cc: 3.9+ Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/intel_pstate.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index b012d7600e1..7cde885011e 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -103,10 +103,10 @@ struct pstate_adjust_policy { static struct pstate_adjust_policy default_policy = { .sample_rate_ms = 10, .deadband = 0, - .setpoint = 109, - .p_gain_pct = 17, + .setpoint = 97, + .p_gain_pct = 20, .d_gain_pct = 0, - .i_gain_pct = 4, + .i_gain_pct = 0, }; struct perf_limits { @@ -468,12 +468,12 @@ static inline void intel_pstate_set_sample_time(struct cpudata *cpu) static inline int intel_pstate_get_scaled_busy(struct cpudata *cpu) { int32_t busy_scaled; - int32_t core_busy, turbo_pstate, current_pstate; + int32_t core_busy, max_pstate, current_pstate; core_busy = int_tofp(cpu->samples[cpu->sample_ptr].core_pct_busy); - turbo_pstate = int_tofp(cpu->pstate.turbo_pstate); + max_pstate = int_tofp(cpu->pstate.max_pstate); current_pstate = int_tofp(cpu->pstate.current_pstate); - busy_scaled = mul_fp(core_busy, div_fp(turbo_pstate, current_pstate)); + busy_scaled = mul_fp(core_busy, div_fp(max_pstate, current_pstate)); return fp_toint(busy_scaled); } -- cgit v1.2.3 From 334ab91d5818256befbf083755d0bb9e7dbd2325 Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Tue, 9 Jul 2013 08:26:24 +0100 Subject: ARM: dts: STi: Fix pinconf setup for STiH416 serial2 This patch fixes a bug in pinctrl setup of serial2 device, Some of the pins in the pinctrl node of serial2 do not belong to that pin-controller. This patch divides them in the pins into there respective pin controller nodes. Without this patch serial on StiH416-B2000 Board will not work as it fails with: "st-pinctrl pin-controller-rear.3: failed to get pin(99) name st-pinctrl pin-controller-rear.3: maps: function serial2 group serial2-0 num 4 pinconfig core: failed to register map default (3): no group/pin given" Signed-off-by: Srinivas Kandagatla Signed-off-by: Olof Johansson --- arch/arm/boot/dts/stih416-pinctrl.dtsi | 10 +++++++++- arch/arm/boot/dts/stih416.dtsi | 2 +- 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/stih416-pinctrl.dtsi b/arch/arm/boot/dts/stih416-pinctrl.dtsi index 957b21a71b4..0f246c97926 100644 --- a/arch/arm/boot/dts/stih416-pinctrl.dtsi +++ b/arch/arm/boot/dts/stih416-pinctrl.dtsi @@ -166,6 +166,15 @@ reg = <0x9000 0x100>; st,bank-name = "PIO31"; }; + + serial2-oe { + pinctrl_serial2_oe: serial2-1 { + st,pins { + output-enable = <&PIO11 3 ALT2 OUT>; + }; + }; + }; + }; pin-controller-rear { @@ -218,7 +227,6 @@ st,pins { tx = <&PIO17 4 ALT2 OUT>; rx = <&PIO17 5 ALT2 IN>; - output-enable = <&PIO11 3 ALT2 OUT>; }; }; }; diff --git a/arch/arm/boot/dts/stih416.dtsi b/arch/arm/boot/dts/stih416.dtsi index 3cecd9689a4..1a0326ea7d0 100644 --- a/arch/arm/boot/dts/stih416.dtsi +++ b/arch/arm/boot/dts/stih416.dtsi @@ -79,7 +79,7 @@ interrupts = <0 197 0>; clocks = <&CLK_S_ICN_REG_0>; pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_serial2>; + pinctrl-0 = <&pinctrl_serial2 &pinctrl_serial2_oe>; }; /* SBC_UART1 */ -- cgit v1.2.3 From c9250073cdd54339a320b78719761d3ea33714fe Mon Sep 17 00:00:00 2001 From: Srinivas Kandagatla Date: Tue, 9 Jul 2013 08:26:33 +0100 Subject: ARM: STi: Set correct ARM ERRATAs. Some of the ARM_ERRATA selection is not done in the initial SOC support patches. This patch selects 2 new ARM_ERRATA's and removes one which was actually fixed. Signed-off-by: Srinivas Kandagatla [olof: reorder new errata entries] Signed-off-by: Olof Johansson --- arch/arm/mach-sti/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-sti/Kconfig b/arch/arm/mach-sti/Kconfig index d04e3bfe191..835833e3c4f 100644 --- a/arch/arm/mach-sti/Kconfig +++ b/arch/arm/mach-sti/Kconfig @@ -11,8 +11,9 @@ menuconfig ARCH_STI select HAVE_SMP select HAVE_ARM_SCU if SMP select ARCH_REQUIRE_GPIOLIB - select ARM_ERRATA_720789 select ARM_ERRATA_754322 + select ARM_ERRATA_764369 + select ARM_ERRATA_775420 select PL310_ERRATA_753970 if CACHE_PL310 select PL310_ERRATA_769419 if CACHE_PL310 help -- cgit v1.2.3 From ab116a4df4942c78c189d9b0744dd940ab9e00b9 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Wed, 10 Jul 2013 11:09:12 +0900 Subject: dmaengine: shdma: fix a build failure on platforms with no DMA support On platforms with no support for the shdma dmaengine driver build is currently failing with drivers/built-in.o: In function `sh_mobile_sdhi_probe': drivers/mmc/host/sh_mobile_sdhi.c:170: undefined reference to`shdma_chan_filter' Fix the breakage by defining shdma_chan_filter to NULL in such configurations. Signed-off-by: Guennadi Liakhovetski [horms+renesas@verge.net.au: Apply change to shdma-base.h instead of sh_dma.h] Signed-off-by: Simon Horman Signed-off-by: Olof Johansson --- include/linux/shdma-base.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/shdma-base.h b/include/linux/shdma-base.h index 382cf710ca9..5b1c9848124 100644 --- a/include/linux/shdma-base.h +++ b/include/linux/shdma-base.h @@ -124,6 +124,10 @@ void shdma_chan_remove(struct shdma_chan *schan); int shdma_init(struct device *dev, struct shdma_dev *sdev, int chan_num); void shdma_cleanup(struct shdma_dev *sdev); +#if IS_ENABLED(CONFIG_SH_DMAE_BASE) bool shdma_chan_filter(struct dma_chan *chan, void *arg); +#else +#define shdma_chan_filter NULL +#endif #endif -- cgit v1.2.3 From 6287e7319870ec949fb809e4eb4154c2b05b221f Mon Sep 17 00:00:00 2001 From: Mike Frysinger Date: Thu, 27 Jun 2013 22:42:36 -0400 Subject: ARM: footbridge: fix overlapping PCI mappings Commit 8ef6e6201b26cb9fde79c1baa08145af6aca2815 (ARM: footbridge: use fixed PCI i/o mapping) broke booting on my netwinder. Before that, everything boots fine. Since then, it crashes on boot. With earlyprintk, I see it BUG-ing like so: kernel BUG at lib/ioremap.c:27! Internal error: Oops - BUG: 0 [#1] ARM ... [] (ioremap_page_range+0x128/0x154) from [] (dc21285_setup+0xd0/0x114) [] (dc21285_setup+0xd0/0x114) from [] (pci_common_init+0xa0/0x298) [] (pci_common_init+0xa0/0x298) from [] (netwinder_pci_init+0xc/0x18) [] (netwinder_pci_init+0xc/0x18) from [] (do_one_initcall+0xb4/0x180) ... Russell points out it's because of overlapping PCI mappings that was added with the aforementioned commit. Rob thought the code would re-use the static mapping, but that turns out to not be the case and instead hits the BUG further down. After deleting this hunk as suggested by Russel, the system boots up fine again and all my PCI devices work (IDE, ethernet, the DC21285). Signed-off-by: Mike Frysinger Acked-by: Rob Herring Cc: stable@vger.kernel.org # v3.5+ Signed-off-by: Olof Johansson --- arch/arm/mach-footbridge/dc21285.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c index a7cd2cf5e08..3490a24f969 100644 --- a/arch/arm/mach-footbridge/dc21285.c +++ b/arch/arm/mach-footbridge/dc21285.c @@ -276,8 +276,6 @@ int __init dc21285_setup(int nr, struct pci_sys_data *sys) sys->mem_offset = DC21285_PCI_MEM; - pci_ioremap_io(0, DC21285_PCI_IO); - pci_add_resource_offset(&sys->resources, &res[0], sys->mem_offset); pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset); -- cgit v1.2.3 From e64bf95e68bf92e7f6d906da4715b937cec5646c Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Sun, 21 Jul 2013 14:53:37 -0500 Subject: ARM: highbank: Only touch common coherency control register fields Midway adds new register fields to the coherency control registers, so writing absolute values will break on Midway. Change the register accesses to only modify the necessary and common fields in order to support both Midway and Highbank. Signed-off-by: Rob Herring Signed-off-by: Olof Johansson --- arch/arm/mach-highbank/highbank.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c index dc5d6becd8c..88815795fe2 100644 --- a/arch/arm/mach-highbank/highbank.c +++ b/arch/arm/mach-highbank/highbank.c @@ -115,6 +115,7 @@ static int highbank_platform_notifier(struct notifier_block *nb, { struct resource *res; int reg = -1; + u32 val; struct device *dev = __dev; if (event != BUS_NOTIFY_ADD_DEVICE) @@ -141,10 +142,10 @@ static int highbank_platform_notifier(struct notifier_block *nb, return NOTIFY_DONE; if (of_property_read_bool(dev->of_node, "dma-coherent")) { - writel(0xff31, sregs_base + reg); + val = readl(sregs_base + reg); + writel(val | 0xff01, sregs_base + reg); set_dma_ops(dev, &arm_coherent_dma_ops); - } else - writel(0, sregs_base + reg); + } return NOTIFY_OK; } -- cgit v1.2.3 From 7d148ef51a657fd04036c3ed7803da600dd0d451 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Mon, 22 Jul 2013 18:02:39 +0200 Subject: drm/i915: fix hdmi portclock limits In commit 325b9d048810f7689ec644595061c0b700e64bce Author: Daniel Vetter Date: Fri Apr 19 11:24:33 2013 +0200 drm/i915: fixup 12bpc hdmi dotclock handling I've errornously claimed that we don't yet support the hdmi 1.4 dotclocks > 225 MHz on Haswell. But a bug report and a closer look at the wrpll table showed that we've supported port clocks up to 300MHz. With the new code to dynamically compute wrpll limits we should have no issues going up to the full 340 MHz range of hdmi 1.4, so let's just use that to fix this regression. That'll allow 4k over hdmi for free! v2: Drop the random hunk that somehow slipped in. v3: Cantiga has the original HDMI dotclock limit of 165MHz. And also patch up the mode filtering. To do so extract the dotclock limits into a little helper function. v4: Use 300MHz (from Bspec) instead of 340MHz (upper limit for hdmi 1.3), apparently hw is not required to be able to drive the highest dotclocks. Suggested by Damien. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67048 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67030 Tested-by: Andreas Reis (v2) Cc: Damien Lespiau Reviewed-by: Damien Lespiau Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_hdmi.c | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 98df2a0c85b..2fd3fd5b943 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -785,10 +785,22 @@ static void intel_disable_hdmi(struct intel_encoder *encoder) } } +static int hdmi_portclock_limit(struct intel_hdmi *hdmi) +{ + struct drm_device *dev = intel_hdmi_to_dev(hdmi); + + if (IS_G4X(dev)) + return 165000; + else if (IS_HASWELL(dev)) + return 300000; + else + return 225000; +} + static int intel_hdmi_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { - if (mode->clock > 165000) + if (mode->clock > hdmi_portclock_limit(intel_attached_hdmi(connector))) return MODE_CLOCK_HIGH; if (mode->clock < 20000) return MODE_CLOCK_LOW; @@ -806,6 +818,7 @@ bool intel_hdmi_compute_config(struct intel_encoder *encoder, struct drm_device *dev = encoder->base.dev; struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode; int clock_12bpc = pipe_config->requested_mode.clock * 3 / 2; + int portclock_limit = hdmi_portclock_limit(intel_hdmi); int desired_bpp; if (intel_hdmi->color_range_auto) { @@ -829,7 +842,7 @@ bool intel_hdmi_compute_config(struct intel_encoder *encoder, * outputs. We also need to check that the higher clock still fits * within limits. */ - if (pipe_config->pipe_bpp > 8*3 && clock_12bpc <= 225000 + if (pipe_config->pipe_bpp > 8*3 && clock_12bpc <= portclock_limit && HAS_PCH_SPLIT(dev)) { DRM_DEBUG_KMS("picking bpc to 12 for HDMI output\n"); desired_bpp = 12*3; @@ -846,7 +859,7 @@ bool intel_hdmi_compute_config(struct intel_encoder *encoder, pipe_config->pipe_bpp = desired_bpp; } - if (adjusted_mode->clock > 225000) { + if (adjusted_mode->clock > portclock_limit) { DRM_DEBUG_KMS("too high HDMI clock, rejecting mode\n"); return false; } -- cgit v1.2.3 From 82b2f495fba338d1e3098dde1df54944a9c19751 Mon Sep 17 00:00:00 2001 From: Mark Rutland Date: Tue, 9 Jul 2013 15:16:06 +0100 Subject: arm64: virt: ensure visibility of __boot_cpu_mode Secondary CPUs write to __boot_cpu_mode with caches disabled, and thus a cached value of __boot_cpu_mode may be incoherent with that in memory. This could lead to a failure to detect mismatched boot modes. This patch adds flushing to ensure that writes by secondaries to __boot_cpu_mode are made visible before we test against it. Signed-off-by: Mark Rutland Cc: Marc Zyngier Cc: Christoffer Dall Signed-off-by: Catalin Marinas --- arch/arm64/include/asm/virt.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm64/include/asm/virt.h b/arch/arm64/include/asm/virt.h index 439827271e3..26e310c5434 100644 --- a/arch/arm64/include/asm/virt.h +++ b/arch/arm64/include/asm/virt.h @@ -21,6 +21,7 @@ #define BOOT_CPU_MODE_EL2 (0x0e12b007) #ifndef __ASSEMBLY__ +#include /* * __boot_cpu_mode records what mode CPUs were booted in. @@ -36,9 +37,20 @@ extern u32 __boot_cpu_mode[2]; void __hyp_set_vectors(phys_addr_t phys_vector_base); phys_addr_t __hyp_get_vectors(void); +static inline void sync_boot_mode(void) +{ + /* + * As secondaries write to __boot_cpu_mode with caches disabled, we + * must flush the corresponding cache entries to ensure the visibility + * of their writes. + */ + __flush_dcache_area(__boot_cpu_mode, sizeof(__boot_cpu_mode)); +} + /* Reports the availability of HYP mode */ static inline bool is_hyp_mode_available(void) { + sync_boot_mode(); return (__boot_cpu_mode[0] == BOOT_CPU_MODE_EL2 && __boot_cpu_mode[1] == BOOT_CPU_MODE_EL2); } @@ -46,6 +58,7 @@ static inline bool is_hyp_mode_available(void) /* Check if the bootloader has booted CPUs in different modes */ static inline bool is_hyp_mode_mismatched(void) { + sync_boot_mode(); return __boot_cpu_mode[0] != __boot_cpu_mode[1]; } -- cgit v1.2.3 From b0946fc84628b8d60e7a2034b48d1aff7da9d1df Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Tue, 23 Jul 2013 11:05:10 +0100 Subject: arm64: Fix definition of arm_pm_restart to match the declaration Commit ff70130 (arm64: use common reboot infrastructure) converted the arm_pm_restart declaration to the new reboot infrastructure but missed the actual definition. Signed-off-by: Catalin Marinas --- arch/arm64/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 1788bf6b471..57fb55c44c9 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -81,7 +81,7 @@ void soft_restart(unsigned long addr) void (*pm_power_off)(void); EXPORT_SYMBOL_GPL(pm_power_off); -void (*arm_pm_restart)(char str, const char *cmd); +void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd); EXPORT_SYMBOL_GPL(arm_pm_restart); void arch_cpu_idle_prepare(void) -- cgit v1.2.3 From 96f15f29038e58e1b0a96483e2b369ff446becf1 Mon Sep 17 00:00:00 2001 From: Jeff Skirvin Date: Thu, 11 Jul 2013 17:18:58 -0700 Subject: [SCSI] isci: Fix a race condition in the SSP task management path This commit fixes a race condition in the isci driver abort task and SSP device task management path. The race is caused when an I/O termination in the SCU hardware is necessary because of an SSP target timeout condition, and the check of the I/O end state races against the HW-termination-driven end state. The failure of the race meant that no TMF was sent to the device to clean-up the pending I/O. Signed-off-by: Jeff Skirvin Reviewed-by: Lukasz Dorau Cc: Signed-off-by: James Bottomley --- drivers/scsi/isci/task.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/isci/task.c b/drivers/scsi/isci/task.c index 9bb020ac089..0d30ca849e8 100644 --- a/drivers/scsi/isci/task.c +++ b/drivers/scsi/isci/task.c @@ -491,6 +491,7 @@ int isci_task_abort_task(struct sas_task *task) struct isci_tmf tmf; int ret = TMF_RESP_FUNC_FAILED; unsigned long flags; + int target_done_already = 0; /* Get the isci_request reference from the task. Note that * this check does not depend on the pending request list @@ -505,9 +506,11 @@ int isci_task_abort_task(struct sas_task *task) /* If task is already done, the request isn't valid */ if (!(task->task_state_flags & SAS_TASK_STATE_DONE) && (task->task_state_flags & SAS_TASK_AT_INITIATOR) && - old_request) + old_request) { idev = isci_get_device(task->dev->lldd_dev); - + target_done_already = test_bit(IREQ_COMPLETE_IN_TARGET, + &old_request->flags); + } spin_unlock(&task->task_state_lock); spin_unlock_irqrestore(&ihost->scic_lock, flags); @@ -561,7 +564,7 @@ int isci_task_abort_task(struct sas_task *task) if (task->task_proto == SAS_PROTOCOL_SMP || sas_protocol_ata(task->task_proto) || - test_bit(IREQ_COMPLETE_IN_TARGET, &old_request->flags) || + target_done_already || test_bit(IDEV_GONE, &idev->flags)) { spin_unlock_irqrestore(&ihost->scic_lock, flags); -- cgit v1.2.3 From c3ccb1d7cf4c4549151876dd37c0944a682fd9e1 Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Fri, 12 Jul 2013 14:47:51 -0400 Subject: [SCSI] qla2xxx: Properly set the tagging for commands. This fixes a regression where Xyratex controllers and disks were lost by the driver: https://bugzilla.kernel.org/show_bug.cgi?id=59601 Reported-by: Jack Hill Signed-off-by: Saurav Kashyap Signed-off-by: Giridhar Malavali Cc: Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_iocb.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index 42ef481db94..ef0a5481b9d 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -419,6 +419,8 @@ qla2x00_start_scsi(srb_t *sp) __constant_cpu_to_le16(CF_SIMPLE_TAG); break; } + } else { + cmd_pkt->control_flags = __constant_cpu_to_le16(CF_SIMPLE_TAG); } /* Load SCSI command packet. */ @@ -1307,11 +1309,11 @@ qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, fcp_cmnd->task_attribute = TSK_ORDERED; break; default: - fcp_cmnd->task_attribute = 0; + fcp_cmnd->task_attribute = TSK_SIMPLE; break; } } else { - fcp_cmnd->task_attribute = 0; + fcp_cmnd->task_attribute = TSK_SIMPLE; } cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */ @@ -1525,7 +1527,12 @@ qla24xx_start_scsi(srb_t *sp) case ORDERED_QUEUE_TAG: cmd_pkt->task = TSK_ORDERED; break; + default: + cmd_pkt->task = TSK_SIMPLE; + break; } + } else { + cmd_pkt->task = TSK_SIMPLE; } /* Load SCSI command packet. */ -- cgit v1.2.3 From c91bc6ccd13254826fdfceddba0f3b5e308aa93e Mon Sep 17 00:00:00 2001 From: Xiaotian Feng Date: Tue, 23 Jul 2013 11:54:10 +0800 Subject: ahci: fix Null pointer dereference in achi_host_active() commit b29900e6 (AHCI: Make distinct names for ports in /proc/interrupts) introuded a regression, which resulted Null pointer dereference for achi host with dummy ports. For ahci ports, when the port is dummy port, its private_data will be NULL, as ata_dummy_port_ops doesn't support ->port_start. changes in v2: use pp to check dummy ports, update comments Reported-and-tested-by: Alex Williamson Signed-off-by: Xiaotian Feng Signed-off-by: Tejun Heo Cc: Alexander Gordeev Cc: linux-ide@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- drivers/ata/ahci.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 5064f3ea20f..db4380d7003 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1146,11 +1146,18 @@ int ahci_host_activate(struct ata_host *host, int irq, unsigned int n_msis) return rc; for (i = 0; i < host->n_ports; i++) { + const char* desc; struct ahci_port_priv *pp = host->ports[i]->private_data; + /* pp is NULL for dummy ports */ + if (pp) + desc = pp->irq_desc; + else + desc = dev_driver_string(host->dev); + rc = devm_request_threaded_irq(host->dev, irq + i, ahci_hw_interrupt, ahci_thread_fn, IRQF_SHARED, - pp->irq_desc, host->ports[i]); + desc, host->ports[i]); if (rc) goto out_free_irqs; } -- cgit v1.2.3 From 085b513f97d8d799d28491239be4b451bcd8c2c5 Mon Sep 17 00:00:00 2001 From: "Ewan D. Milne" Date: Fri, 2 Nov 2012 09:38:34 -0400 Subject: [SCSI] sd: fix crash when UA received on DIF enabled device sd_prep_fn will allocate a larger CDB for the command via mempool_alloc for devices using DIF type 2 protection. This CDB was being freed in sd_done, which results in a kernel crash if the command is retried due to a UNIT ATTENTION. This change moves the code to free the larger CDB into sd_unprep_fn instead, which is invoked after the request is complete. It is no longer necessary to call scsi_print_command separately for this case as the ->cmnd will no longer be NULL in the normal code path. Also removed conditional test for DIF type 2 when freeing the larger CDB because the protection_type could have been changed via sysfs while the command was executing. Signed-off-by: Ewan D. Milne Acked-by: Martin K. Petersen Cc: Signed-off-by: James Bottomley --- drivers/scsi/sd.c | 22 +++++++--------------- 1 file changed, 7 insertions(+), 15 deletions(-) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 80f39b8b022..86fcf2c313a 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -838,10 +838,17 @@ static int scsi_setup_flush_cmnd(struct scsi_device *sdp, struct request *rq) static void sd_unprep_fn(struct request_queue *q, struct request *rq) { + struct scsi_cmnd *SCpnt = rq->special; + if (rq->cmd_flags & REQ_DISCARD) { free_page((unsigned long)rq->buffer); rq->buffer = NULL; } + if (SCpnt->cmnd != rq->cmd) { + mempool_free(SCpnt->cmnd, sd_cdb_pool); + SCpnt->cmnd = NULL; + SCpnt->cmd_len = 0; + } } /** @@ -1720,21 +1727,6 @@ static int sd_done(struct scsi_cmnd *SCpnt) if (rq_data_dir(SCpnt->request) == READ && scsi_prot_sg_count(SCpnt)) sd_dif_complete(SCpnt, good_bytes); - if (scsi_host_dif_capable(sdkp->device->host, sdkp->protection_type) - == SD_DIF_TYPE2_PROTECTION && SCpnt->cmnd != SCpnt->request->cmd) { - - /* We have to print a failed command here as the - * extended CDB gets freed before scsi_io_completion() - * is called. - */ - if (result) - scsi_print_command(SCpnt); - - mempool_free(SCpnt->cmnd, sd_cdb_pool); - SCpnt->cmnd = NULL; - SCpnt->cmd_len = 0; - } - return good_bytes; } -- cgit v1.2.3 From e4daf1ffbe6cc3b12aab4d604e627829e93e9914 Mon Sep 17 00:00:00 2001 From: Harshula Jayasuriya Date: Tue, 23 Jul 2013 14:21:35 +1000 Subject: nfsd: nfsd_open: when dentry_open returns an error do not propagate as struct file The following call chain: ------------------------------------------------------------ nfs4_get_vfs_file - nfsd_open - dentry_open - do_dentry_open - __get_file_write_access - get_write_access - return atomic_inc_unless_negative(&inode->i_writecount) ? 0 : -ETXTBSY; ------------------------------------------------------------ can result in the following state: ------------------------------------------------------------ struct nfs4_file { ... fi_fds = {0xffff880c1fa65c80, 0xffffffffffffffe6, 0x0}, fi_access = {{ counter = 0x1 }, { counter = 0x0 }}, ... ------------------------------------------------------------ 1) First time around, in nfs4_get_vfs_file() fp->fi_fds[O_WRONLY] is NULL, hence nfsd_open() is called where we get status set to an error and fp->fi_fds[O_WRONLY] to -ETXTBSY. Thus we do not reach nfs4_file_get_access() and fi_access[O_WRONLY] is not incremented. 2) Second time around, in nfs4_get_vfs_file() fp->fi_fds[O_WRONLY] is NOT NULL (-ETXTBSY), so nfsd_open() is NOT called, but nfs4_file_get_access() IS called and fi_access[O_WRONLY] is incremented. Thus we leave a landmine in the form of the nfs4_file data structure in an incorrect state. 3) Eventually, when __nfs4_file_put_access() is called it finds fi_access[O_WRONLY] being non-zero, it decrements it and calls nfs4_file_put_fd() which tries to fput -ETXTBSY. ------------------------------------------------------------ ... [exception RIP: fput+0x9] RIP: ffffffff81177fa9 RSP: ffff88062e365c90 RFLAGS: 00010282 RAX: ffff880c2b3d99cc RBX: ffff880c2b3d9978 RCX: 0000000000000002 RDX: dead000000100101 RSI: 0000000000000001 RDI: ffffffffffffffe6 RBP: ffff88062e365c90 R8: ffff88041fe797d8 R9: ffff88062e365d58 R10: 0000000000000008 R11: 0000000000000000 R12: 0000000000000001 R13: 0000000000000007 R14: 0000000000000000 R15: 0000000000000000 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 #9 [ffff88062e365c98] __nfs4_file_put_access at ffffffffa0562334 [nfsd] #10 [ffff88062e365cc8] nfs4_file_put_access at ffffffffa05623ab [nfsd] #11 [ffff88062e365ce8] free_generic_stateid at ffffffffa056634d [nfsd] #12 [ffff88062e365d18] release_open_stateid at ffffffffa0566e4b [nfsd] #13 [ffff88062e365d38] nfsd4_close at ffffffffa0567401 [nfsd] #14 [ffff88062e365d88] nfsd4_proc_compound at ffffffffa0557f28 [nfsd] #15 [ffff88062e365dd8] nfsd_dispatch at ffffffffa054543e [nfsd] #16 [ffff88062e365e18] svc_process_common at ffffffffa04ba5a4 [sunrpc] #17 [ffff88062e365e98] svc_process at ffffffffa04babe0 [sunrpc] #18 [ffff88062e365eb8] nfsd at ffffffffa0545b62 [nfsd] #19 [ffff88062e365ee8] kthread at ffffffff81090886 #20 [ffff88062e365f48] kernel_thread at ffffffff8100c14a ------------------------------------------------------------ Cc: stable@vger.kernel.org Signed-off-by: Harshula Jayasuriya Signed-off-by: J. Bruce Fields --- fs/nfsd/vfs.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 8ff6a0019b0..c827acb0e94 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -830,9 +830,10 @@ nfsd_open(struct svc_rqst *rqstp, struct svc_fh *fhp, umode_t type, flags = O_WRONLY|O_LARGEFILE; } *filp = dentry_open(&path, flags, current_cred()); - if (IS_ERR(*filp)) + if (IS_ERR(*filp)) { host_err = PTR_ERR(*filp); - else { + *filp = NULL; + } else { host_err = ima_file_check(*filp, may_flags); if (may_flags & NFSD_MAY_64BIT_COOKIE) -- cgit v1.2.3 From ca24763588844b14f019ffc45c7df6d9e8f932c5 Mon Sep 17 00:00:00 2001 From: "Alexandr \\\"Sky\\\" Ivanov" Date: Tue, 23 Jul 2013 17:46:40 +0400 Subject: USB: option: add D-Link DWM-152/C1 and DWM-156/C1 Adding support for D-Link DWM-152/C1 and DWM-156/C1 devices. DWM-152/C1: T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 6 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=07d1 ProdID=3e01 Rev= 0.00 S: Product=USB Configuration S: SerialNumber=1234567890ABCDEF C:* #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 4 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms DWM-156/C1: T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 8 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=07d1 ProdID=3e02 Rev= 0.00 S: Product=DataCard Device S: SerialNumber=1234567890ABCDEF C:* #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 4 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms Signed-off-by: Alexandr Ivanov Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 418746b557a..9cc40031c23 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -1341,6 +1341,8 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d02, 0xff, 0x00, 0x00) }, { USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x02, 0x01) }, { USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d03, 0xff, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/C1 */ { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, option_ids); -- cgit v1.2.3 From ed882c3e72d6037589baa4328585c2b0450e673c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Vincent=20Stehl=C3=A9?= Date: Thu, 27 Jun 2013 14:49:27 +0200 Subject: ARM: keystone: fix compilation warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix the following compilation warning: arch/arm/mach-keystone/keystone.c:74:2: warning: initialization from incompatible pointer type [enabled by default] arch/arm/mach-keystone/keystone.c:74:2: warning: (near initialization for ‘__mach_desc_KEYSTONE.restart’) [enabled by default] Signed-off-by: Vincent Stehlé Cc: Robin Holt Cc: Russell King Cc: trivial@kernel.org Signed-off-by: Olof Johansson --- arch/arm/mach-keystone/keystone.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-keystone/keystone.c b/arch/arm/mach-keystone/keystone.c index fe4d9ff93a7..b661c5c2870 100644 --- a/arch/arm/mach-keystone/keystone.c +++ b/arch/arm/mach-keystone/keystone.c @@ -49,7 +49,7 @@ static const char *keystone_match[] __initconst = { NULL, }; -void keystone_restart(char mode, const char *cmd) +void keystone_restart(enum reboot_mode mode, const char *cmd) { u32 val; -- cgit v1.2.3 From fe08bf9f46d6ae8e08de32d29234a2c928eebf8f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Vincent=20Stehl=C3=A9?= Date: Thu, 27 Jun 2013 14:42:41 +0200 Subject: ARM: zynq: fix compilation warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix the following compilation warning: arch/arm/mach-zynq/common.c:110:2: warning: initialization from incompatible pointer type [enabled by default] arch/arm/mach-zynq/common.c:110:2: warning: (near initialization for ‘__mach_desc_XILINX_EP107.restart’) [enabled by default] Signed-off-by: Vincent Stehlé Cc: Robin Holt Cc: Michal Simek Cc: Russell King Cc: trivial@kernel.org Signed-off-by: Olof Johansson --- arch/arm/mach-zynq/common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c index 5b799c29886..5f252569c68 100644 --- a/arch/arm/mach-zynq/common.c +++ b/arch/arm/mach-zynq/common.c @@ -91,7 +91,7 @@ static void __init zynq_map_io(void) zynq_scu_map_io(); } -static void zynq_system_reset(char mode, const char *cmd) +static void zynq_system_reset(enum reboot_mode mode, const char *cmd) { zynq_slcr_system_reset(); } -- cgit v1.2.3 From a829abf8daa2dcf8223a9284b76d221e61130e13 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 5 Jul 2013 17:51:20 +0200 Subject: ARM: pxa: propagate errors from regulator_enable() to pxamci The em_x270_mci_setpower() and em_x270_usb_hub_init() functions call regulator_enable(), which may return an error that must be checked. This changes the em_x270_usb_hub_init() function to bail out if it fails, and changes the pxamci_platform_data->setpower callback so that the a failed em_x270_mci_setpower call can be propagated by the pxamci driver into the mmc core. Signed-off-by: Arnd Bergmann Cc: Mike Rapoport Cc: Paul Gortmaker Cc: Mark Brown Cc: Haojian Zhuang Acked-by: Chris Ball [olof: fixed order of regulator_enable() and test in em_x270_usb_hub_init] Signed-off-by: Olof Johansson --- arch/arm/mach-pxa/em-x270.c | 17 +++++++++++++---- arch/arm/mach-pxa/mainstone.c | 3 ++- arch/arm/mach-pxa/pcm990-baseboard.c | 3 ++- arch/arm/mach-pxa/poodle.c | 4 +++- arch/arm/mach-pxa/spitz.c | 4 +++- arch/arm/mach-pxa/stargate2.c | 3 ++- drivers/mmc/host/pxamci.c | 2 +- include/linux/platform_data/mmc-pxamci.h | 2 +- 8 files changed, 27 insertions(+), 11 deletions(-) diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c index f6726bb4eb9..3a3362fa793 100644 --- a/arch/arm/mach-pxa/em-x270.c +++ b/arch/arm/mach-pxa/em-x270.c @@ -477,16 +477,24 @@ static int em_x270_usb_hub_init(void) /* USB Hub power-on and reset */ gpio_direction_output(usb_hub_reset, 1); gpio_direction_output(GPIO9_USB_VBUS_EN, 0); - regulator_enable(em_x270_usb_ldo); + err = regulator_enable(em_x270_usb_ldo); + if (err) + goto err_free_rst_gpio; + gpio_set_value(usb_hub_reset, 0); gpio_set_value(usb_hub_reset, 1); regulator_disable(em_x270_usb_ldo); - regulator_enable(em_x270_usb_ldo); + err = regulator_enable(em_x270_usb_ldo); + if (err) + goto err_free_rst_gpio; + gpio_set_value(usb_hub_reset, 0); gpio_set_value(GPIO9_USB_VBUS_EN, 1); return 0; +err_free_rst_gpio: + gpio_free(usb_hub_reset); err_free_vbus_gpio: gpio_free(GPIO9_USB_VBUS_EN); err_free_usb_ldo: @@ -592,7 +600,7 @@ err_irq: return err; } -static void em_x270_mci_setpower(struct device *dev, unsigned int vdd) +static int em_x270_mci_setpower(struct device *dev, unsigned int vdd) { struct pxamci_platform_data* p_d = dev->platform_data; @@ -600,10 +608,11 @@ static void em_x270_mci_setpower(struct device *dev, unsigned int vdd) int vdd_uV = (2000 + (vdd - __ffs(MMC_VDD_20_21)) * 100) * 1000; regulator_set_voltage(em_x270_sdio_ldo, vdd_uV, vdd_uV); - regulator_enable(em_x270_sdio_ldo); + return regulator_enable(em_x270_sdio_ldo); } else { regulator_disable(em_x270_sdio_ldo); } + return 0; } static void em_x270_mci_exit(struct device *dev, void *data) diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c index d2c65231837..dd70343c870 100644 --- a/arch/arm/mach-pxa/mainstone.c +++ b/arch/arm/mach-pxa/mainstone.c @@ -408,7 +408,7 @@ static int mainstone_mci_init(struct device *dev, irq_handler_t mstone_detect_in return err; } -static void mainstone_mci_setpower(struct device *dev, unsigned int vdd) +static int mainstone_mci_setpower(struct device *dev, unsigned int vdd) { struct pxamci_platform_data* p_d = dev->platform_data; @@ -420,6 +420,7 @@ static void mainstone_mci_setpower(struct device *dev, unsigned int vdd) printk(KERN_DEBUG "%s: off\n", __func__); MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON; } + return 0; } static void mainstone_mci_exit(struct device *dev, void *data) diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c index fb7f1d1627d..13e5b00eae9 100644 --- a/arch/arm/mach-pxa/pcm990-baseboard.c +++ b/arch/arm/mach-pxa/pcm990-baseboard.c @@ -335,7 +335,7 @@ static int pcm990_mci_init(struct device *dev, irq_handler_t mci_detect_int, return err; } -static void pcm990_mci_setpower(struct device *dev, unsigned int vdd) +static int pcm990_mci_setpower(struct device *dev, unsigned int vdd) { struct pxamci_platform_data *p_d = dev->platform_data; u8 val; @@ -348,6 +348,7 @@ static void pcm990_mci_setpower(struct device *dev, unsigned int vdd) val &= ~PCM990_CTRL_MMC2PWR; pcm990_cpld_writeb(PCM990_CTRL_MMC2PWR, PCM990_CTRL_REG5); + return 0; } static void pcm990_mci_exit(struct device *dev, void *data) diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c index 711d37e26bd..aedf053a1de 100644 --- a/arch/arm/mach-pxa/poodle.c +++ b/arch/arm/mach-pxa/poodle.c @@ -258,7 +258,7 @@ err_free_2: return err; } -static void poodle_mci_setpower(struct device *dev, unsigned int vdd) +static int poodle_mci_setpower(struct device *dev, unsigned int vdd) { struct pxamci_platform_data* p_d = dev->platform_data; @@ -270,6 +270,8 @@ static void poodle_mci_setpower(struct device *dev, unsigned int vdd) gpio_set_value(POODLE_GPIO_SD_PWR1, 0); gpio_set_value(POODLE_GPIO_SD_PWR, 0); } + + return 0; } static void poodle_mci_exit(struct device *dev, void *data) diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c index 2125df0444e..4c29173026e 100644 --- a/arch/arm/mach-pxa/spitz.c +++ b/arch/arm/mach-pxa/spitz.c @@ -598,7 +598,7 @@ static inline void spitz_spi_init(void) {} * NOTE: The card detect interrupt isn't debounced so we delay it by 250ms to * give the card a chance to fully insert/eject. */ -static void spitz_mci_setpower(struct device *dev, unsigned int vdd) +static int spitz_mci_setpower(struct device *dev, unsigned int vdd) { struct pxamci_platform_data* p_d = dev->platform_data; @@ -606,6 +606,8 @@ static void spitz_mci_setpower(struct device *dev, unsigned int vdd) spitz_card_pwr_ctrl(SCOOP_CPR_SD_3V, SCOOP_CPR_SD_3V); else spitz_card_pwr_ctrl(SCOOP_CPR_SD_3V, 0x0); + + return 0; } static struct pxamci_platform_data spitz_mci_platform_data = { diff --git a/arch/arm/mach-pxa/stargate2.c b/arch/arm/mach-pxa/stargate2.c index 88fde43c948..62aea3e835f 100644 --- a/arch/arm/mach-pxa/stargate2.c +++ b/arch/arm/mach-pxa/stargate2.c @@ -734,9 +734,10 @@ static int stargate2_mci_init(struct device *dev, * * Very simple control. Either it is on or off and is controlled by * a gpio pin */ -static void stargate2_mci_setpower(struct device *dev, unsigned int vdd) +static int stargate2_mci_setpower(struct device *dev, unsigned int vdd) { gpio_set_value(SG2_SD_POWER_ENABLE, !!vdd); + return 0; } static void stargate2_mci_exit(struct device *dev, void *data) diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c index 847b1996ce8..2c5a91bb8ec 100644 --- a/drivers/mmc/host/pxamci.c +++ b/drivers/mmc/host/pxamci.c @@ -128,7 +128,7 @@ static inline int pxamci_set_power(struct pxamci_host *host, !!on ^ host->pdata->gpio_power_invert); } if (!host->vcc && host->pdata && host->pdata->setpower) - host->pdata->setpower(mmc_dev(host->mmc), vdd); + return host->pdata->setpower(mmc_dev(host->mmc), vdd); return 0; } diff --git a/include/linux/platform_data/mmc-pxamci.h b/include/linux/platform_data/mmc-pxamci.h index 9eb515bb799..1706b3597ce 100644 --- a/include/linux/platform_data/mmc-pxamci.h +++ b/include/linux/platform_data/mmc-pxamci.h @@ -12,7 +12,7 @@ struct pxamci_platform_data { unsigned long detect_delay_ms; /* delay in millisecond before detecting cards after interrupt */ int (*init)(struct device *, irq_handler_t , void *); int (*get_ro)(struct device *); - void (*setpower)(struct device *, unsigned int); + int (*setpower)(struct device *, unsigned int); void (*exit)(struct device *, void *); int gpio_card_detect; /* gpio detecting card insertion */ int gpio_card_ro; /* gpio detecting read only toggle */ -- cgit v1.2.3 From a520a9b7edc940fc735c526470313cf963fc72da Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Tue, 23 Jul 2013 14:02:06 -0300 Subject: ARM: multi_v7_defconfig: Select USB chipidea driver CONFIG_USB_EHCI_MXC selects the old i.mx USB driver, which does not support device tree. Select the USB chipidea driver instead, so that USB can be functional on i.mx. Signed-off-by: Fabio Estevam Signed-off-by: Olof Johansson --- arch/arm/configs/multi_v7_defconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig index 120b08edb9a..6e572c64cf5 100644 --- a/arch/arm/configs/multi_v7_defconfig +++ b/arch/arm/configs/multi_v7_defconfig @@ -114,11 +114,12 @@ CONFIG_FB_SIMPLE=y CONFIG_USB=y CONFIG_USB_XHCI_HCD=y CONFIG_USB_EHCI_HCD=y -CONFIG_USB_EHCI_MXC=y CONFIG_USB_EHCI_TEGRA=y CONFIG_USB_EHCI_HCD_PLATFORM=y CONFIG_USB_ISP1760_HCD=y CONFIG_USB_STORAGE=y +CONFIG_USB_CHIPIDEA=y +CONFIG_USB_CHIPIDEA_HOST=y CONFIG_AB8500_USB=y CONFIG_NOP_USB_XCEIV=y CONFIG_OMAP_USB2=y -- cgit v1.2.3 From 69acbaac303e8cb948801a9ddd0ac24e86cc4a1b Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Mon, 8 Jul 2013 13:36:19 +0100 Subject: staging: comedi: COMEDI_CANCEL ioctl should wake up read/write Comedi devices can do blocking read() or write() (or poll()) if an asynchronous command has been set up, blocking for data (for read()) or buffer space (for write()). Various events associated with the asynchronous command will wake up the blocked reader or writer (or poller). It is also possible to force the asynchronous command to terminate by issuing a `COMEDI_CANCEL` ioctl. That shuts down the asynchronous command, but does not currently wake up the blocked reader or writer (or poller). If the blocked task could be woken up, it would see that the command is no longer active and return. The caller of the `COMEDI_CANCEL` ioctl could attempt to wake up the blocked task by sending a signal, but that's a nasty workaround. Change `do_cancel_ioctl()` to wake up the wait queue after it returns from `do_cancel()`. `do_cancel()` can propagate an error return value from the low-level comedi driver's cancel routine, but it always shuts the command down regardless, so `do_cancel_ioctl()` can wake up he wait queue regardless of the return value from `do_cancel()`. Signed-off-by: Ian Abbott Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/comedi_fops.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index 8647518259f..6cdef9d5f8d 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -1705,6 +1705,7 @@ static int do_cancel_ioctl(struct comedi_device *dev, unsigned int arg, void *file) { struct comedi_subdevice *s; + int ret; if (arg >= dev->n_subdevices) return -EINVAL; @@ -1721,7 +1722,11 @@ static int do_cancel_ioctl(struct comedi_device *dev, unsigned int arg, if (s->busy != file) return -EBUSY; - return do_cancel(dev, s); + ret = do_cancel(dev, s); + if (comedi_get_subdevice_runflags(s) & SRF_USER) + wake_up_interruptible(&s->async->wait_head); + + return ret; } /* -- cgit v1.2.3 From 4b18f08be01a7b3c7b6df497137b6e3cb28adaa3 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Fri, 5 Jul 2013 16:49:34 +0100 Subject: staging: comedi: fix a race between do_cmd_ioctl() and read/write `do_cmd_ioctl()` is called with the comedi device's mutex locked to process the `COMEDI_CMD` ioctl to set up comedi's asynchronous command handling on a comedi subdevice. `comedi_read()` and `comedi_write()` are the `read` and `write` handlers for the comedi device, but do not lock the mutex (for performance reasons, as some things can hold the mutex for quite a long time). There is a race condition if `comedi_read()` or `comedi_write()` is running at the same time and for the same file object and comedi subdevice as `do_cmd_ioctl()`. `do_cmd_ioctl()` sets the subdevice's `busy` pointer to the file object way before it sets the `SRF_RUNNING` flag in the subdevice's `runflags` member. `comedi_read() and `comedi_write()` check the subdevice's `busy` pointer is pointing to the current file object, then if the `SRF_RUNNING` flag is not set, will call `do_become_nonbusy()` to shut down the asyncronous command. Bad things can happen if the asynchronous command is being shutdown and set up at the same time. To prevent the race, don't set the `busy` pointer until after the `SRF_RUNNING` flag has been set. Also, make sure the mutex is held in `comedi_read()` and `comedi_write()` while calling `do_become_nonbusy()` in order to avoid moving the race condition to a point within that function. Change some error handling `goto cleanup` statements in `do_cmd_ioctl()` to simple `return -ERRFOO` statements as a result of changing when the `busy` pointer is set. Signed-off-by: Ian Abbott Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/comedi_fops.c | 25 +++++++++++++++---------- 1 file changed, 15 insertions(+), 10 deletions(-) diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c index 6cdef9d5f8d..f4a197b2d1f 100644 --- a/drivers/staging/comedi/comedi_fops.c +++ b/drivers/staging/comedi/comedi_fops.c @@ -1413,22 +1413,19 @@ static int do_cmd_ioctl(struct comedi_device *dev, DPRINTK("subdevice busy\n"); return -EBUSY; } - s->busy = file; /* make sure channel/gain list isn't too long */ if (cmd.chanlist_len > s->len_chanlist) { DPRINTK("channel/gain list too long %u > %d\n", cmd.chanlist_len, s->len_chanlist); - ret = -EINVAL; - goto cleanup; + return -EINVAL; } /* make sure channel/gain list isn't too short */ if (cmd.chanlist_len < 1) { DPRINTK("channel/gain list too short %u < 1\n", cmd.chanlist_len); - ret = -EINVAL; - goto cleanup; + return -EINVAL; } async->cmd = cmd; @@ -1438,8 +1435,7 @@ static int do_cmd_ioctl(struct comedi_device *dev, kmalloc(async->cmd.chanlist_len * sizeof(int), GFP_KERNEL); if (!async->cmd.chanlist) { DPRINTK("allocation failed\n"); - ret = -ENOMEM; - goto cleanup; + return -ENOMEM; } if (copy_from_user(async->cmd.chanlist, user_chanlist, @@ -1491,6 +1487,9 @@ static int do_cmd_ioctl(struct comedi_device *dev, comedi_set_subdevice_runflags(s, ~0, SRF_USER | SRF_RUNNING); + /* set s->busy _after_ setting SRF_RUNNING flag to avoid race with + * comedi_read() or comedi_write() */ + s->busy = file; ret = s->do_cmd(dev, s); if (ret == 0) return 0; @@ -2058,11 +2057,13 @@ static ssize_t comedi_write(struct file *file, const char __user *buf, if (!comedi_is_subdevice_running(s)) { if (count == 0) { + mutex_lock(&dev->mutex); if (comedi_is_subdevice_in_error(s)) retval = -EPIPE; else retval = 0; do_become_nonbusy(dev, s); + mutex_unlock(&dev->mutex); } break; } @@ -2161,11 +2162,13 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes, if (n == 0) { if (!comedi_is_subdevice_running(s)) { + mutex_lock(&dev->mutex); do_become_nonbusy(dev, s); if (comedi_is_subdevice_in_error(s)) retval = -EPIPE; else retval = 0; + mutex_unlock(&dev->mutex); break; } if (file->f_flags & O_NONBLOCK) { @@ -2203,9 +2206,11 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes, buf += n; break; /* makes device work like a pipe */ } - if (comedi_is_subdevice_idle(s) && - async->buf_read_count - async->buf_write_count == 0) { - do_become_nonbusy(dev, s); + if (comedi_is_subdevice_idle(s)) { + mutex_lock(&dev->mutex); + if (async->buf_read_count - async->buf_write_count == 0) + do_become_nonbusy(dev, s); + mutex_unlock(&dev->mutex); } set_current_state(TASK_RUNNING); remove_wait_queue(&async->wait_head, &wait); -- cgit v1.2.3 From c8145c56103099565be2e18aeac2a32f79361f3f Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 22 Jul 2013 09:57:49 +0300 Subject: staging: frontier: use after free in disconnect() usb_alphatrack_delete() frees "dev" so we can't use it on that path. Signed-off-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman --- drivers/staging/frontier/alphatrack.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/frontier/alphatrack.c b/drivers/staging/frontier/alphatrack.c index 5590ebf1da1..817f837b240 100644 --- a/drivers/staging/frontier/alphatrack.c +++ b/drivers/staging/frontier/alphatrack.c @@ -827,11 +827,11 @@ static void usb_alphatrack_disconnect(struct usb_interface *intf) mutex_unlock(&dev->mtx); usb_alphatrack_delete(dev); } else { + atomic_set(&dev->writes_pending, 0); dev->intf = NULL; mutex_unlock(&dev->mtx); } - atomic_set(&dev->writes_pending, 0); mutex_unlock(&disconnect_mutex); dev_info(&intf->dev, "Alphatrack Surface #%d now disconnected\n", -- cgit v1.2.3 From 3a349cee593a464b25f329a1b76635900187fdb0 Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Sun, 14 Jul 2013 13:29:48 +0200 Subject: staging: drm/imx: drop "select OF_VIDEOMODE" Commit ac4c1a9b33 ("staging: drm/imx: Add LDB support") added the DRM_IMX_LDB Kconfig entry. That entry selects OF_VIDEOMODE. But there is no Kconfig symbol named OF_VIDEOMODE. The select statement for that symbol is a nop. Drop it. Signed-off-by: Paul Bolle Acked-by: Sascha Hauer Signed-off-by: Greg Kroah-Hartman --- drivers/staging/imx-drm/Kconfig | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/staging/imx-drm/Kconfig b/drivers/staging/imx-drm/Kconfig index 22339059837..bd0f2fd01db 100644 --- a/drivers/staging/imx-drm/Kconfig +++ b/drivers/staging/imx-drm/Kconfig @@ -33,7 +33,6 @@ config DRM_IMX_TVE config DRM_IMX_LDB tristate "Support for LVDS displays" depends on DRM_IMX - select OF_VIDEOMODE help Choose this to enable the internal LVDS Display Bridge (LDB) found on i.MX53 and i.MX6 processors. -- cgit v1.2.3 From f2a6fed1ceaecf6054627f0ddbd4becf43c997fc Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 22 Jul 2013 11:00:53 +0300 Subject: staging: gdm72xx: potential use after free in send_qos_list() Sometimes free_qos_entry() sometimes frees its argument. I have moved the dereference of "entry" ahead on line to avoid a use after free. Signed-off-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman --- drivers/staging/gdm72xx/gdm_qos.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/gdm72xx/gdm_qos.c b/drivers/staging/gdm72xx/gdm_qos.c index b795353e834..cc3692439a5 100644 --- a/drivers/staging/gdm72xx/gdm_qos.c +++ b/drivers/staging/gdm72xx/gdm_qos.c @@ -250,8 +250,8 @@ static void send_qos_list(struct nic *nic, struct list_head *head) list_for_each_entry_safe(entry, n, head, list) { list_del(&entry->list); - free_qos_entry(entry); gdm_wimax_send_tx(entry->skb, entry->dev); + free_qos_entry(entry); } } -- cgit v1.2.3 From 644d478793c6594277f8ae76954da4ace7ac6f96 Mon Sep 17 00:00:00 2001 From: Sergey Senozhatsky Date: Wed, 26 Jun 2013 15:28:39 +0300 Subject: staging: zram: protect zram_reset_device() call Commit 9b3bb7abcdf2df0f1b2657e6cbc9d06bc2b3b36f (remove zram_sysfs file (v2)) accidentally made zram_reset_device() racy. Protect zram_reset_device() call with zram->lock. Signed-off-by: Sergey Senozhatsky Acked-by: Jerome Marchand Signed-off-by: Greg Kroah-Hartman --- drivers/staging/zram/zram_drv.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c index 82c7202fd5c..e77fb6ea40c 100644 --- a/drivers/staging/zram/zram_drv.c +++ b/drivers/staging/zram/zram_drv.c @@ -527,8 +527,11 @@ static void zram_reset_device(struct zram *zram) size_t index; struct zram_meta *meta; - if (!zram->init_done) + down_write(&zram->init_lock); + if (!zram->init_done) { + up_write(&zram->init_lock); return; + } meta = zram->meta; zram->init_done = 0; @@ -549,6 +552,7 @@ static void zram_reset_device(struct zram *zram) zram->disksize = 0; set_capacity(zram->disk, 0); + up_write(&zram->init_lock); } static void zram_init_device(struct zram *zram, struct zram_meta *meta) -- cgit v1.2.3 From 72bb99cfe9c57d2044445fb34bbc95b4c0bae6f2 Mon Sep 17 00:00:00 2001 From: Karlis Ogsts Date: Mon, 22 Jul 2013 13:51:42 -0700 Subject: staging: android: logger: Correct write offset reset on error In the situation that a writer fails to copy data from userspace it will reset the write offset to the value it had before it went to sleep. This discarding any messages written while aquiring the mutex. Therefore the reset offset needs to be retrieved after acquiring the mutex. Cc: Android Kernel Team Signed-off-by: Bjorn Andersson Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/staging/android/logger.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/staging/android/logger.c b/drivers/staging/android/logger.c index 080abf2faf9..a8c344422a7 100644 --- a/drivers/staging/android/logger.c +++ b/drivers/staging/android/logger.c @@ -469,7 +469,7 @@ static ssize_t logger_aio_write(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t ppos) { struct logger_log *log = file_get_log(iocb->ki_filp); - size_t orig = log->w_off; + size_t orig; struct logger_entry header; struct timespec now; ssize_t ret = 0; @@ -490,6 +490,8 @@ static ssize_t logger_aio_write(struct kiocb *iocb, const struct iovec *iov, mutex_lock(&log->mutex); + orig = log->w_off; + /* * Fix up any readers, pulling them forward to the first readable * entry after (what will be) the new write offset. We do this now -- cgit v1.2.3 From 53a983c4f8b4246f5ff00567411be55967b0350a Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Sun, 9 Jun 2013 09:23:16 -0700 Subject: [SCSI] mvsas: Fix kernel panic on tile due to unaligned data access slot->response is a 64 bit quantity (and accessed as such), but its alignment is only 32 bits. This doesn't cause a problem on x86, but apparently causes a kernel panic on Tile: Stack dump complete Kernel panic - not syncing: Kernel unalign fault running the idle task! Starting stack dump of tid 0, pid 0 (swapper) on cpu 1 at cycle 341586172541 frame 0: 0xfffffff700140ee0 dump_stack+0x0/0x20 (sp 0xfffffe43ffedf420) frame 1: 0xfffffff700283270 panic+0x150/0x3a0 (sp 0xfffffe43ffedf420) frame 2: 0xfffffff70012bff8 jit_bundle_gen+0xfd8/0x27e0 (sp 0xfffffe43ffedf4c8) frame 3: 0xfffffff7003b5b68 do_unaligned+0xc0/0x5a0 (sp 0xfffffe43ffedf710) frame 4: 0xfffffff70044ca78 handle_interrupt+0x270/0x278 (sp 0xfffffe43ffedf840) frame 5: 0xfffffff7002ac370 mvs_slot_complete+0x5f0/0x12a0 (sp 0xfffffe43ffedfa90) frame 6: 0xfffffff7002abec0 mvs_slot_complete+0x140/0x12a0 (sp 0xfffffe43ffedfa90) frame 7: 0xfffffff7005cc840 mvs_int_rx+0x140/0x2a0 (sp 0xfffffe43ffedfb00) frame 8: 0xfffffff7005bbaf0 mvs_94xx_isr+0xd8/0x2b8 (sp 0xfffffe43ffedfb68) frame 9: 0xfffffff700658ba0 mvs_tasklet+0x128/0x1f8 (sp 0xfffffe43ffedfba8) frame 10: 0xfffffff7003e8230 tasklet_action+0x178/0x2c8 (sp 0xfffffe43ffedfbe0) frame 11: 0xfffffff700103850 __do_softirq+0x210/0x398 (sp 0xfffffe43ffedfc40) frame 12: 0xfffffff700180308 do_softirq+0xc8/0x140 (sp 0xfffffe43ffedfcd8) frame 13: 0xfffffff7000bd7f0 irq_exit+0xb0/0x158 (sp 0xfffffe43ffedfcf0) frame 14: 0xfffffff70013fa58 tile_dev_intr+0x1d8/0x2f0 (sp 0xfffffe43ffedfd00) frame 15: 0xfffffff70044ca78 handle_interrupt+0x270/0x278 (sp 0xfffffe43ffedfd40) frame 16: 0xfffffff700143e68 _cpu_idle_nap+0x0/0x18 (sp 0xfffffe43ffedffb0) frame 17: 0xfffffff700482480 cpu_idle+0x310/0x428 (sp 0xfffffe43ffedffb0) Since the check is just for non-zero, split it to be two 32 bit accesses (preserving speed in the fast path) and do a get_unaligned() in the slow path. This is a modification of a wholly get_unaligned patch submitted by Paul Guo Reported-by: Paul Guo Signed-off-by: James Bottomley --- drivers/scsi/mvsas/mv_sas.c | 11 ++++++++--- drivers/scsi/mvsas/mv_sas.h | 1 + 2 files changed, 9 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c index f14665a6293..6b1b4e91e53 100644 --- a/drivers/scsi/mvsas/mv_sas.c +++ b/drivers/scsi/mvsas/mv_sas.c @@ -1857,11 +1857,16 @@ int mvs_slot_complete(struct mvs_info *mvi, u32 rx_desc, u32 flags) goto out; } - /* error info record present */ - if (unlikely((rx_desc & RXQ_ERR) && (*(u64 *) slot->response))) { + /* + * error info record present; slot->response is 32 bit aligned but may + * not be 64 bit aligned, so check for zero in two 32 bit reads + */ + if (unlikely((rx_desc & RXQ_ERR) + && (*((u32 *)slot->response) + || *(((u32 *)slot->response) + 1)))) { mv_dprintk("port %d slot %d rx_desc %X has error info" "%016llX.\n", slot->port->sas_port.id, slot_idx, - rx_desc, (u64)(*(u64 *)slot->response)); + rx_desc, get_unaligned_le64(slot->response)); tstat->stat = mvs_slot_err(mvi, task, slot_idx); tstat->resp = SAS_TASK_COMPLETE; goto out; diff --git a/drivers/scsi/mvsas/mv_sas.h b/drivers/scsi/mvsas/mv_sas.h index 60e2fb7f2dc..d6b19dc80be 100644 --- a/drivers/scsi/mvsas/mv_sas.h +++ b/drivers/scsi/mvsas/mv_sas.h @@ -39,6 +39,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3 From 88d84ac97378c2f1d5fec9af1e8b7d9a662d6b00 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Fri, 19 Jul 2013 12:28:25 +0200 Subject: EDAC: Fix lockdep splat Fix the following: BUG: key ffff88043bdd0330 not in .data! ------------[ cut here ]------------ WARNING: at kernel/lockdep.c:2987 lockdep_init_map+0x565/0x5a0() DEBUG_LOCKS_WARN_ON(1) Modules linked in: glue_helper sb_edac(+) edac_core snd acpi_cpufreq lrw gf128mul ablk_helper iTCO_wdt evdev i2c_i801 dcdbas button cryptd pcspkr iTCO_vendor_support usb_common lpc_ich mfd_core soundcore mperf processor microcode CPU: 2 PID: 599 Comm: modprobe Not tainted 3.10.0 #1 Hardware name: Dell Inc. Precision T3600/0PTTT9, BIOS A08 01/24/2013 0000000000000009 ffff880439a1d920 ffffffff8160a9a9 ffff880439a1d958 ffffffff8103d9e0 ffff88043af4a510 ffffffff81a16e11 0000000000000000 ffff88043bdd0330 0000000000000000 ffff880439a1d9b8 ffffffff8103dacc Call Trace: dump_stack warn_slowpath_common warn_slowpath_fmt lockdep_init_map ? trace_hardirqs_on_caller ? trace_hardirqs_on debug_mutex_init __mutex_init bus_register edac_create_sysfs_mci_device edac_mc_add_mc sbridge_probe pci_device_probe driver_probe_device __driver_attach ? driver_probe_device bus_for_each_dev driver_attach bus_add_driver driver_register __pci_register_driver ? 0xffffffffa0010fff sbridge_init ? 0xffffffffa0010fff do_one_initcall load_module ? unset_module_init_ro_nx SyS_init_module tracesys ---[ end trace d24a70b0d3ddf733 ]--- EDAC MC0: Giving out device to 'sbridge_edac.c' 'Sandy Bridge Socket#0': DEV 0000:3f:0e.0 EDAC sbridge: Driver loaded. What happens is that bus_register needs a statically allocated lock_key because the last is handed in to lockdep. However, struct mem_ctl_info embeds struct bus_type (the whole struct, not a pointer to it) and the whole thing gets dynamically allocated. Fix this by using a statically allocated struct bus_type for the MC bus. Signed-off-by: Borislav Petkov Acked-by: Mauro Carvalho Chehab Cc: Markus Trippelsdorf Cc: stable@kernel.org # v3.10 Signed-off-by: Tony Luck --- drivers/edac/edac_mc.c | 9 +++++++++ drivers/edac/edac_mc_sysfs.c | 28 +++++++++++++++------------- drivers/edac/i5100_edac.c | 2 +- include/linux/edac.h | 7 ++++++- 4 files changed, 31 insertions(+), 15 deletions(-) diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index 27e86d93826..89e109022d7 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -48,6 +48,8 @@ static LIST_HEAD(mc_devices); */ static void const *edac_mc_owner; +static struct bus_type mc_bus[EDAC_MAX_MCS]; + unsigned edac_dimm_info_location(struct dimm_info *dimm, char *buf, unsigned len) { @@ -723,6 +725,11 @@ int edac_mc_add_mc(struct mem_ctl_info *mci) int ret = -EINVAL; edac_dbg(0, "\n"); + if (mci->mc_idx >= EDAC_MAX_MCS) { + pr_warn_once("Too many memory controllers: %d\n", mci->mc_idx); + return -ENODEV; + } + #ifdef CONFIG_EDAC_DEBUG if (edac_debug_level >= 3) edac_mc_dump_mci(mci); @@ -762,6 +769,8 @@ int edac_mc_add_mc(struct mem_ctl_info *mci) /* set load time so that error rate can be tracked */ mci->start_time = jiffies; + mci->bus = &mc_bus[mci->mc_idx]; + if (edac_create_sysfs_mci_device(mci)) { edac_mc_printk(mci, KERN_WARNING, "failed to create sysfs device\n"); diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c index ef15a7e613b..e7c32c4f783 100644 --- a/drivers/edac/edac_mc_sysfs.c +++ b/drivers/edac/edac_mc_sysfs.c @@ -370,7 +370,7 @@ static int edac_create_csrow_object(struct mem_ctl_info *mci, return -ENODEV; csrow->dev.type = &csrow_attr_type; - csrow->dev.bus = &mci->bus; + csrow->dev.bus = mci->bus; device_initialize(&csrow->dev); csrow->dev.parent = &mci->dev; csrow->mci = mci; @@ -605,7 +605,7 @@ static int edac_create_dimm_object(struct mem_ctl_info *mci, dimm->mci = mci; dimm->dev.type = &dimm_attr_type; - dimm->dev.bus = &mci->bus; + dimm->dev.bus = mci->bus; device_initialize(&dimm->dev); dimm->dev.parent = &mci->dev; @@ -975,11 +975,13 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci) * The memory controller needs its own bus, in order to avoid * namespace conflicts at /sys/bus/edac. */ - mci->bus.name = kasprintf(GFP_KERNEL, "mc%d", mci->mc_idx); - if (!mci->bus.name) + mci->bus->name = kasprintf(GFP_KERNEL, "mc%d", mci->mc_idx); + if (!mci->bus->name) return -ENOMEM; - edac_dbg(0, "creating bus %s\n", mci->bus.name); - err = bus_register(&mci->bus); + + edac_dbg(0, "creating bus %s\n", mci->bus->name); + + err = bus_register(mci->bus); if (err < 0) return err; @@ -988,7 +990,7 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci) device_initialize(&mci->dev); mci->dev.parent = mci_pdev; - mci->dev.bus = &mci->bus; + mci->dev.bus = mci->bus; dev_set_name(&mci->dev, "mc%d", mci->mc_idx); dev_set_drvdata(&mci->dev, mci); pm_runtime_forbid(&mci->dev); @@ -997,8 +999,8 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci) err = device_add(&mci->dev); if (err < 0) { edac_dbg(1, "failure: create device %s\n", dev_name(&mci->dev)); - bus_unregister(&mci->bus); - kfree(mci->bus.name); + bus_unregister(mci->bus); + kfree(mci->bus->name); return err; } @@ -1064,8 +1066,8 @@ fail: } fail2: device_unregister(&mci->dev); - bus_unregister(&mci->bus); - kfree(mci->bus.name); + bus_unregister(mci->bus); + kfree(mci->bus->name); return err; } @@ -1098,8 +1100,8 @@ void edac_unregister_sysfs(struct mem_ctl_info *mci) { edac_dbg(1, "Unregistering device %s\n", dev_name(&mci->dev)); device_unregister(&mci->dev); - bus_unregister(&mci->bus); - kfree(mci->bus.name); + bus_unregister(mci->bus); + kfree(mci->bus->name); } static void mc_attr_release(struct device *dev) diff --git a/drivers/edac/i5100_edac.c b/drivers/edac/i5100_edac.c index 1b635178cc4..157b934e8ce 100644 --- a/drivers/edac/i5100_edac.c +++ b/drivers/edac/i5100_edac.c @@ -974,7 +974,7 @@ static int i5100_setup_debugfs(struct mem_ctl_info *mci) if (!i5100_debugfs) return -ENODEV; - priv->debugfs = debugfs_create_dir(mci->bus.name, i5100_debugfs); + priv->debugfs = debugfs_create_dir(mci->bus->name, i5100_debugfs); if (!priv->debugfs) return -ENOMEM; diff --git a/include/linux/edac.h b/include/linux/edac.h index 0b763276f61..5c6d7fbaf89 100644 --- a/include/linux/edac.h +++ b/include/linux/edac.h @@ -622,7 +622,7 @@ struct edac_raw_error_desc { */ struct mem_ctl_info { struct device dev; - struct bus_type bus; + struct bus_type *bus; struct list_head link; /* for global list of mem_ctl_info structs */ @@ -742,4 +742,9 @@ struct mem_ctl_info { #endif }; +/* + * Maximum number of memory controllers in the coherent fabric. + */ +#define EDAC_MAX_MCS 16 + #endif -- cgit v1.2.3 From 94190301ffa059c2d127b3a67ec5d161d5c62681 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= Date: Fri, 28 Jun 2013 17:15:25 +0200 Subject: usb: option: add TP-LINK MA260 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Bjørn Mork Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 9cc40031c23..bd02f257de1 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -1334,6 +1334,8 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE(PETATEL_VENDOR_ID, PETATEL_PRODUCT_NP10T_600E) }, { USB_DEVICE(TPLINK_VENDOR_ID, TPLINK_PRODUCT_MA180), .driver_info = (kernel_ulong_t)&net_intf4_blacklist }, + { USB_DEVICE(TPLINK_VENDOR_ID, 0x9000), /* TP-Link MA260 */ + .driver_info = (kernel_ulong_t)&net_intf4_blacklist }, { USB_DEVICE(CHANGHONG_VENDOR_ID, CHANGHONG_PRODUCT_CH690) }, { USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d01, 0xff, 0x02, 0x01) }, /* D-Link DWM-156 (variant) */ { USB_DEVICE_AND_INTERFACE_INFO(0x2001, 0x7d01, 0xff, 0x00, 0x00) }, /* D-Link DWM-156 (variant) */ -- cgit v1.2.3 From 0665f9f852b4ac05f2f62046a169f0f5b9212317 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 22 Jul 2013 14:37:39 +1000 Subject: drm/qxl: add delayed fb operations Due to the nature of qxl hw we cannot queue operations while in an irq context, so we queue these operations as best we can until atomic allocations fail, and dequeue them later in a work queue. Daniel looked over the locking on the list and agrees it should be sufficent. The atomic allocs use no warn, as the last thing we want if we haven't memory to allocate space for a printk in an irq context is more printks. Signed-off-by: Dave Airlie --- drivers/gpu/drm/qxl/qxl_drv.h | 1 + drivers/gpu/drm/qxl/qxl_fb.c | 184 +++++++++++++++++++++++++++++++++++++----- 2 files changed, 164 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h index aacb791464a..6a4106fb4c2 100644 --- a/drivers/gpu/drm/qxl/qxl_drv.h +++ b/drivers/gpu/drm/qxl/qxl_drv.h @@ -314,6 +314,7 @@ struct qxl_device { struct workqueue_struct *gc_queue; struct work_struct gc_work; + struct work_struct fb_work; }; /* forward declaration for QXL_INFO_IO */ diff --git a/drivers/gpu/drm/qxl/qxl_fb.c b/drivers/gpu/drm/qxl/qxl_fb.c index 76f39d88d68..88722f23343 100644 --- a/drivers/gpu/drm/qxl/qxl_fb.c +++ b/drivers/gpu/drm/qxl/qxl_fb.c @@ -37,12 +37,29 @@ #define QXL_DIRTY_DELAY (HZ / 30) +#define QXL_FB_OP_FILLRECT 1 +#define QXL_FB_OP_COPYAREA 2 +#define QXL_FB_OP_IMAGEBLIT 3 + +struct qxl_fb_op { + struct list_head head; + int op_type; + union { + struct fb_fillrect fr; + struct fb_copyarea ca; + struct fb_image ib; + } op; + void *img_data; +}; + struct qxl_fbdev { struct drm_fb_helper helper; struct qxl_framebuffer qfb; struct list_head fbdev_list; struct qxl_device *qdev; + spinlock_t delayed_ops_lock; + struct list_head delayed_ops; void *shadow; int size; @@ -164,8 +181,69 @@ static struct fb_deferred_io qxl_defio = { .deferred_io = qxl_deferred_io, }; -static void qxl_fb_fillrect(struct fb_info *info, - const struct fb_fillrect *fb_rect) +static void qxl_fb_delayed_fillrect(struct qxl_fbdev *qfbdev, + const struct fb_fillrect *fb_rect) +{ + struct qxl_fb_op *op; + unsigned long flags; + + op = kmalloc(sizeof(struct qxl_fb_op), GFP_ATOMIC | __GFP_NOWARN); + if (!op) + return; + + op->op.fr = *fb_rect; + op->img_data = NULL; + op->op_type = QXL_FB_OP_FILLRECT; + + spin_lock_irqsave(&qfbdev->delayed_ops_lock, flags); + list_add_tail(&op->head, &qfbdev->delayed_ops); + spin_unlock_irqrestore(&qfbdev->delayed_ops_lock, flags); +} + +static void qxl_fb_delayed_copyarea(struct qxl_fbdev *qfbdev, + const struct fb_copyarea *fb_copy) +{ + struct qxl_fb_op *op; + unsigned long flags; + + op = kmalloc(sizeof(struct qxl_fb_op), GFP_ATOMIC | __GFP_NOWARN); + if (!op) + return; + + op->op.ca = *fb_copy; + op->img_data = NULL; + op->op_type = QXL_FB_OP_COPYAREA; + + spin_lock_irqsave(&qfbdev->delayed_ops_lock, flags); + list_add_tail(&op->head, &qfbdev->delayed_ops); + spin_unlock_irqrestore(&qfbdev->delayed_ops_lock, flags); +} + +static void qxl_fb_delayed_imageblit(struct qxl_fbdev *qfbdev, + const struct fb_image *fb_image) +{ + struct qxl_fb_op *op; + unsigned long flags; + uint32_t size = fb_image->width * fb_image->height * (fb_image->depth >= 8 ? fb_image->depth / 8 : 1); + + op = kmalloc(sizeof(struct qxl_fb_op) + size, GFP_ATOMIC | __GFP_NOWARN); + if (!op) + return; + + op->op.ib = *fb_image; + op->img_data = (void *)(op + 1); + op->op_type = QXL_FB_OP_IMAGEBLIT; + + memcpy(op->img_data, fb_image->data, size); + + op->op.ib.data = op->img_data; + spin_lock_irqsave(&qfbdev->delayed_ops_lock, flags); + list_add_tail(&op->head, &qfbdev->delayed_ops); + spin_unlock_irqrestore(&qfbdev->delayed_ops_lock, flags); +} + +static void qxl_fb_fillrect_internal(struct fb_info *info, + const struct fb_fillrect *fb_rect) { struct qxl_fbdev *qfbdev = info->par; struct qxl_device *qdev = qfbdev->qdev; @@ -203,17 +281,28 @@ static void qxl_fb_fillrect(struct fb_info *info, qxl_draw_fill_rec.rect = rect; qxl_draw_fill_rec.color = color; qxl_draw_fill_rec.rop = rop; + + qxl_draw_fill(&qxl_draw_fill_rec); +} + +static void qxl_fb_fillrect(struct fb_info *info, + const struct fb_fillrect *fb_rect) +{ + struct qxl_fbdev *qfbdev = info->par; + struct qxl_device *qdev = qfbdev->qdev; + if (!drm_can_sleep()) { - qxl_io_log(qdev, - "%s: TODO use RCU, mysterious locks with spin_lock\n", - __func__); + qxl_fb_delayed_fillrect(qfbdev, fb_rect); + schedule_work(&qdev->fb_work); return; } - qxl_draw_fill(&qxl_draw_fill_rec); + /* make sure any previous work is done */ + flush_work(&qdev->fb_work); + qxl_fb_fillrect_internal(info, fb_rect); } -static void qxl_fb_copyarea(struct fb_info *info, - const struct fb_copyarea *region) +static void qxl_fb_copyarea_internal(struct fb_info *info, + const struct fb_copyarea *region) { struct qxl_fbdev *qfbdev = info->par; @@ -223,37 +312,89 @@ static void qxl_fb_copyarea(struct fb_info *info, region->dx, region->dy); } +static void qxl_fb_copyarea(struct fb_info *info, + const struct fb_copyarea *region) +{ + struct qxl_fbdev *qfbdev = info->par; + struct qxl_device *qdev = qfbdev->qdev; + + if (!drm_can_sleep()) { + qxl_fb_delayed_copyarea(qfbdev, region); + schedule_work(&qdev->fb_work); + return; + } + /* make sure any previous work is done */ + flush_work(&qdev->fb_work); + qxl_fb_copyarea_internal(info, region); +} + static void qxl_fb_imageblit_safe(struct qxl_fb_image *qxl_fb_image) { qxl_draw_opaque_fb(qxl_fb_image, 0); } +static void qxl_fb_imageblit_internal(struct fb_info *info, + const struct fb_image *image) +{ + struct qxl_fbdev *qfbdev = info->par; + struct qxl_fb_image qxl_fb_image; + + /* ensure proper order rendering operations - TODO: must do this + * for everything. */ + qxl_fb_image_init(&qxl_fb_image, qfbdev->qdev, info, image); + qxl_fb_imageblit_safe(&qxl_fb_image); +} + static void qxl_fb_imageblit(struct fb_info *info, const struct fb_image *image) { struct qxl_fbdev *qfbdev = info->par; struct qxl_device *qdev = qfbdev->qdev; - struct qxl_fb_image qxl_fb_image; if (!drm_can_sleep()) { - /* we cannot do any ttm_bo allocation since that will fail on - * ioremap_wc..__get_vm_area_node, so queue the work item - * instead This can happen from printk inside an interrupt - * context, i.e.: smp_apic_timer_interrupt..check_cpu_stall */ - qxl_io_log(qdev, - "%s: TODO use RCU, mysterious locks with spin_lock\n", - __func__); + qxl_fb_delayed_imageblit(qfbdev, image); + schedule_work(&qdev->fb_work); return; } + /* make sure any previous work is done */ + flush_work(&qdev->fb_work); + qxl_fb_imageblit_internal(info, image); +} - /* ensure proper order of rendering operations - TODO: must do this - * for everything. */ - qxl_fb_image_init(&qxl_fb_image, qfbdev->qdev, info, image); - qxl_fb_imageblit_safe(&qxl_fb_image); +static void qxl_fb_work(struct work_struct *work) +{ + struct qxl_device *qdev = container_of(work, struct qxl_device, fb_work); + unsigned long flags; + struct qxl_fb_op *entry, *tmp; + struct qxl_fbdev *qfbdev = qdev->mode_info.qfbdev; + + /* since the irq context just adds entries to the end of the + list dropping the lock should be fine, as entry isn't modified + in the operation code */ + spin_lock_irqsave(&qfbdev->delayed_ops_lock, flags); + list_for_each_entry_safe(entry, tmp, &qfbdev->delayed_ops, head) { + spin_unlock_irqrestore(&qfbdev->delayed_ops_lock, flags); + switch (entry->op_type) { + case QXL_FB_OP_FILLRECT: + qxl_fb_fillrect_internal(qfbdev->helper.fbdev, &entry->op.fr); + break; + case QXL_FB_OP_COPYAREA: + qxl_fb_copyarea_internal(qfbdev->helper.fbdev, &entry->op.ca); + break; + case QXL_FB_OP_IMAGEBLIT: + qxl_fb_imageblit_internal(qfbdev->helper.fbdev, &entry->op.ib); + break; + } + spin_lock_irqsave(&qfbdev->delayed_ops_lock, flags); + list_del(&entry->head); + kfree(entry); + } + spin_unlock_irqrestore(&qfbdev->delayed_ops_lock, flags); } int qxl_fb_init(struct qxl_device *qdev) { + INIT_WORK(&qdev->fb_work, qxl_fb_work); return 0; } @@ -536,7 +677,8 @@ int qxl_fbdev_init(struct qxl_device *qdev) qfbdev->qdev = qdev; qdev->mode_info.qfbdev = qfbdev; qfbdev->helper.funcs = &qxl_fb_helper_funcs; - + spin_lock_init(&qfbdev->delayed_ops_lock); + INIT_LIST_HEAD(&qfbdev->delayed_ops); ret = drm_fb_helper_init(qdev->ddev, &qfbdev->helper, qxl_num_crtc /* num_crtc - QXL supports just 1 */, QXLFB_CONN_LIMIT); -- cgit v1.2.3 From 4f49ec92be64ad1d96cf5d26fc8276f9849202a3 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Tue, 23 Jul 2013 14:06:07 +1000 Subject: qxl: allow creation of pre-pinned objects and use for releases. In order to fix an issue with reservations we need to create the releases as pre-pinned objects, this changes the placement interface and bo creation interface to allow creating pinned objects to save nested reservations later. This is just a stepping stone to main fix which follows to actually fix how qxl deals with reservations. Signed-off-by: Dave Airlie --- drivers/gpu/drm/qxl/qxl_cmd.c | 2 +- drivers/gpu/drm/qxl/qxl_gem.c | 2 +- drivers/gpu/drm/qxl/qxl_ioctl.c | 2 +- drivers/gpu/drm/qxl/qxl_object.c | 23 +++++++++++------------ drivers/gpu/drm/qxl/qxl_object.h | 4 ++-- drivers/gpu/drm/qxl/qxl_release.c | 9 +++------ drivers/gpu/drm/qxl/qxl_ttm.c | 2 +- 7 files changed, 20 insertions(+), 24 deletions(-) diff --git a/drivers/gpu/drm/qxl/qxl_cmd.c b/drivers/gpu/drm/qxl/qxl_cmd.c index 93c2f2cceb5..4e6a6271661 100644 --- a/drivers/gpu/drm/qxl/qxl_cmd.c +++ b/drivers/gpu/drm/qxl/qxl_cmd.c @@ -266,7 +266,7 @@ int qxl_alloc_bo_reserved(struct qxl_device *qdev, unsigned long size, int ret; ret = qxl_bo_create(qdev, size, false /* not kernel - device */, - QXL_GEM_DOMAIN_VRAM, NULL, &bo); + false, QXL_GEM_DOMAIN_VRAM, NULL, &bo); if (ret) { DRM_ERROR("failed to allocate VRAM BO\n"); return ret; diff --git a/drivers/gpu/drm/qxl/qxl_gem.c b/drivers/gpu/drm/qxl/qxl_gem.c index a235693aabb..25e1777fb0a 100644 --- a/drivers/gpu/drm/qxl/qxl_gem.c +++ b/drivers/gpu/drm/qxl/qxl_gem.c @@ -55,7 +55,7 @@ int qxl_gem_object_create(struct qxl_device *qdev, int size, /* At least align on page size */ if (alignment < PAGE_SIZE) alignment = PAGE_SIZE; - r = qxl_bo_create(qdev, size, kernel, initial_domain, surf, &qbo); + r = qxl_bo_create(qdev, size, kernel, false, initial_domain, surf, &qbo); if (r) { if (r != -ERESTARTSYS) DRM_ERROR( diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c index 27f45e49250..7448c5ea92e 100644 --- a/drivers/gpu/drm/qxl/qxl_ioctl.c +++ b/drivers/gpu/drm/qxl/qxl_ioctl.c @@ -305,7 +305,7 @@ static int qxl_update_area_ioctl(struct drm_device *dev, void *data, goto out; if (!qobj->pin_count) { - qxl_ttm_placement_from_domain(qobj, qobj->type); + qxl_ttm_placement_from_domain(qobj, qobj->type, false); ret = ttm_bo_validate(&qobj->tbo, &qobj->placement, true, false); if (unlikely(ret)) diff --git a/drivers/gpu/drm/qxl/qxl_object.c b/drivers/gpu/drm/qxl/qxl_object.c index 1191fe7788c..50e7a617716 100644 --- a/drivers/gpu/drm/qxl/qxl_object.c +++ b/drivers/gpu/drm/qxl/qxl_object.c @@ -51,20 +51,21 @@ bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo) return false; } -void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain) +void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain, bool pinned) { u32 c = 0; + u32 pflag = pinned ? TTM_PL_FLAG_NO_EVICT : 0; qbo->placement.fpfn = 0; qbo->placement.lpfn = 0; qbo->placement.placement = qbo->placements; qbo->placement.busy_placement = qbo->placements; if (domain == QXL_GEM_DOMAIN_VRAM) - qbo->placements[c++] = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_VRAM; + qbo->placements[c++] = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_VRAM | pflag; if (domain == QXL_GEM_DOMAIN_SURFACE) - qbo->placements[c++] = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_PRIV0; + qbo->placements[c++] = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_PRIV0 | pflag; if (domain == QXL_GEM_DOMAIN_CPU) - qbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM; + qbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM | pflag; if (!c) qbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM; qbo->placement.num_placement = c; @@ -73,7 +74,7 @@ void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain) int qxl_bo_create(struct qxl_device *qdev, - unsigned long size, bool kernel, u32 domain, + unsigned long size, bool kernel, bool pinned, u32 domain, struct qxl_surface *surf, struct qxl_bo **bo_ptr) { @@ -99,7 +100,7 @@ int qxl_bo_create(struct qxl_device *qdev, } bo->gem_base.driver_private = NULL; bo->type = domain; - bo->pin_count = 0; + bo->pin_count = pinned ? 1 : 0; bo->surface_id = 0; qxl_fence_init(qdev, &bo->fence); INIT_LIST_HEAD(&bo->list); @@ -107,7 +108,7 @@ int qxl_bo_create(struct qxl_device *qdev, if (surf) bo->surf = *surf; - qxl_ttm_placement_from_domain(bo, domain); + qxl_ttm_placement_from_domain(bo, domain, pinned); r = ttm_bo_init(&qdev->mman.bdev, &bo->tbo, size, type, &bo->placement, 0, !kernel, NULL, size, @@ -228,7 +229,7 @@ struct qxl_bo *qxl_bo_ref(struct qxl_bo *bo) int qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr) { struct qxl_device *qdev = (struct qxl_device *)bo->gem_base.dev->dev_private; - int r, i; + int r; if (bo->pin_count) { bo->pin_count++; @@ -236,9 +237,7 @@ int qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr) *gpu_addr = qxl_bo_gpu_offset(bo); return 0; } - qxl_ttm_placement_from_domain(bo, domain); - for (i = 0; i < bo->placement.num_placement; i++) - bo->placements[i] |= TTM_PL_FLAG_NO_EVICT; + qxl_ttm_placement_from_domain(bo, domain, true); r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false); if (likely(r == 0)) { bo->pin_count = 1; @@ -350,7 +349,7 @@ int qxl_bo_list_add(struct qxl_reloc_list *reloc_list, struct qxl_bo *bo) return ret; if (!bo->pin_count) { - qxl_ttm_placement_from_domain(bo, bo->type); + qxl_ttm_placement_from_domain(bo, bo->type, false); ret = ttm_bo_validate(&bo->tbo, &bo->placement, true, false); if (ret) diff --git a/drivers/gpu/drm/qxl/qxl_object.h b/drivers/gpu/drm/qxl/qxl_object.h index ee7ad79ce78..116637f0934 100644 --- a/drivers/gpu/drm/qxl/qxl_object.h +++ b/drivers/gpu/drm/qxl/qxl_object.h @@ -88,7 +88,7 @@ static inline int qxl_bo_wait(struct qxl_bo *bo, u32 *mem_type, extern int qxl_bo_create(struct qxl_device *qdev, unsigned long size, - bool kernel, u32 domain, + bool kernel, bool pinned, u32 domain, struct qxl_surface *surf, struct qxl_bo **bo_ptr); extern int qxl_bo_kmap(struct qxl_bo *bo, void **ptr); @@ -99,7 +99,7 @@ extern struct qxl_bo *qxl_bo_ref(struct qxl_bo *bo); extern void qxl_bo_unref(struct qxl_bo **bo); extern int qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr); extern int qxl_bo_unpin(struct qxl_bo *bo); -extern void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain); +extern void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain, bool pinned); extern bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo); extern int qxl_bo_list_add(struct qxl_reloc_list *reloc_list, struct qxl_bo *bo); diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c index b443d6751d5..b7f1271c601 100644 --- a/drivers/gpu/drm/qxl/qxl_release.c +++ b/drivers/gpu/drm/qxl/qxl_release.c @@ -118,7 +118,9 @@ static int qxl_release_bo_alloc(struct qxl_device *qdev, struct qxl_bo **bo) { int ret; - ret = qxl_bo_create(qdev, PAGE_SIZE, false, QXL_GEM_DOMAIN_VRAM, NULL, + /* pin releases bo's they are too messy to evict */ + ret = qxl_bo_create(qdev, PAGE_SIZE, false, true, + QXL_GEM_DOMAIN_VRAM, NULL, bo); return ret; } @@ -216,11 +218,6 @@ int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size, mutex_unlock(&qdev->release_mutex); return ret; } - - /* pin releases bo's they are too messy to evict */ - ret = qxl_bo_reserve(qdev->current_release_bo[cur_idx], false); - qxl_bo_pin(qdev->current_release_bo[cur_idx], QXL_GEM_DOMAIN_VRAM, NULL); - qxl_bo_unreserve(qdev->current_release_bo[cur_idx]); } bo = qxl_bo_ref(qdev->current_release_bo[cur_idx]); diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c index 489cb8cece4..1dfd84cda2a 100644 --- a/drivers/gpu/drm/qxl/qxl_ttm.c +++ b/drivers/gpu/drm/qxl/qxl_ttm.c @@ -206,7 +206,7 @@ static void qxl_evict_flags(struct ttm_buffer_object *bo, return; } qbo = container_of(bo, struct qxl_bo, tbo); - qxl_ttm_placement_from_domain(qbo, QXL_GEM_DOMAIN_CPU); + qxl_ttm_placement_from_domain(qbo, QXL_GEM_DOMAIN_CPU, false); *placement = qbo->placement; } -- cgit v1.2.3 From 8002db6336dd361fc13214e9515fe5d52ff294ee Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Tue, 23 Jul 2013 14:16:42 +1000 Subject: qxl: convert qxl driver to proper use for reservations The recent addition of lockdep support to reservations and their subsequent use by TTM showed up a number of potential problems with the way qxl was using TTM objects. a) it was allocating objects, and reserving them later without validating underneath the reservation, which meant in extreme conditions the objects could be evicted before the reservation ever used them. b) it was reserving objects straight after allocating them, but with no ability to back off should the reservations fail. It now allocates the necessary objects then does a complete reservation pass on them to avoid deadlocks. c) it had two lists per release tracking objects, unnecessary complicating the reservation process. This patch removes the dual object tracking, adds reservations ticket support to the release and fence object handling. It then ports the internal fb drawing code and the userspace facing ioctl to use the new interfaces properly, along with cleanup up the error path handling in some codepaths. Signed-off-by: Dave Airlie --- drivers/gpu/drm/qxl/qxl_cmd.c | 40 ++--- drivers/gpu/drm/qxl/qxl_display.c | 70 ++++++--- drivers/gpu/drm/qxl/qxl_draw.c | 263 +++++++++++++++++++++---------- drivers/gpu/drm/qxl/qxl_drv.h | 75 ++++----- drivers/gpu/drm/qxl/qxl_fence.c | 10 +- drivers/gpu/drm/qxl/qxl_image.c | 111 ++++++++++--- drivers/gpu/drm/qxl/qxl_ioctl.c | 317 +++++++++++++++++++++----------------- drivers/gpu/drm/qxl/qxl_object.c | 49 +----- drivers/gpu/drm/qxl/qxl_object.h | 2 - drivers/gpu/drm/qxl/qxl_release.c | 203 +++++++++++++++--------- 10 files changed, 676 insertions(+), 464 deletions(-) diff --git a/drivers/gpu/drm/qxl/qxl_cmd.c b/drivers/gpu/drm/qxl/qxl_cmd.c index 4e6a6271661..eb89653a7a1 100644 --- a/drivers/gpu/drm/qxl/qxl_cmd.c +++ b/drivers/gpu/drm/qxl/qxl_cmd.c @@ -179,9 +179,10 @@ qxl_push_command_ring_release(struct qxl_device *qdev, struct qxl_release *relea uint32_t type, bool interruptible) { struct qxl_command cmd; + struct qxl_bo_list *entry = list_first_entry(&release->bos, struct qxl_bo_list, tv.head); cmd.type = type; - cmd.data = qxl_bo_physical_address(qdev, release->bos[0], release->release_offset); + cmd.data = qxl_bo_physical_address(qdev, to_qxl_bo(entry->tv.bo), release->release_offset); return qxl_ring_push(qdev->command_ring, &cmd, interruptible); } @@ -191,9 +192,10 @@ qxl_push_cursor_ring_release(struct qxl_device *qdev, struct qxl_release *releas uint32_t type, bool interruptible) { struct qxl_command cmd; + struct qxl_bo_list *entry = list_first_entry(&release->bos, struct qxl_bo_list, tv.head); cmd.type = type; - cmd.data = qxl_bo_physical_address(qdev, release->bos[0], release->release_offset); + cmd.data = qxl_bo_physical_address(qdev, to_qxl_bo(entry->tv.bo), release->release_offset); return qxl_ring_push(qdev->cursor_ring, &cmd, interruptible); } @@ -214,7 +216,6 @@ int qxl_garbage_collect(struct qxl_device *qdev) struct qxl_release *release; uint64_t id, next_id; int i = 0; - int ret; union qxl_release_info *info; while (qxl_ring_pop(qdev->release_ring, &id)) { @@ -224,17 +225,10 @@ int qxl_garbage_collect(struct qxl_device *qdev) if (release == NULL) break; - ret = qxl_release_reserve(qdev, release, false); - if (ret) { - qxl_io_log(qdev, "failed to reserve release on garbage collect %lld\n", id); - DRM_ERROR("failed to reserve release %lld\n", id); - } - info = qxl_release_map(qdev, release); next_id = info->next; qxl_release_unmap(qdev, release, info); - qxl_release_unreserve(qdev, release); QXL_INFO(qdev, "popped %lld, next %lld\n", id, next_id); @@ -259,7 +253,9 @@ int qxl_garbage_collect(struct qxl_device *qdev) return i; } -int qxl_alloc_bo_reserved(struct qxl_device *qdev, unsigned long size, +int qxl_alloc_bo_reserved(struct qxl_device *qdev, + struct qxl_release *release, + unsigned long size, struct qxl_bo **_bo) { struct qxl_bo *bo; @@ -271,15 +267,15 @@ int qxl_alloc_bo_reserved(struct qxl_device *qdev, unsigned long size, DRM_ERROR("failed to allocate VRAM BO\n"); return ret; } - ret = qxl_bo_reserve(bo, false); - if (unlikely(ret != 0)) + ret = qxl_release_list_add(release, bo); + if (ret) goto out_unref; *_bo = bo; return 0; out_unref: qxl_bo_unref(&bo); - return 0; + return ret; } static int wait_for_io_cmd_user(struct qxl_device *qdev, uint8_t val, long port, bool intr) @@ -503,6 +499,10 @@ int qxl_hw_surface_alloc(struct qxl_device *qdev, if (ret) return ret; + ret = qxl_release_reserve_list(release, true); + if (ret) + return ret; + cmd = (struct qxl_surface_cmd *)qxl_release_map(qdev, release); cmd->type = QXL_SURFACE_CMD_CREATE; cmd->u.surface_create.format = surf->surf.format; @@ -524,14 +524,11 @@ int qxl_hw_surface_alloc(struct qxl_device *qdev, surf->surf_create = release; - /* no need to add a release to the fence for this bo, + /* no need to add a release to the fence for this surface bo, since it is only released when we ask to destroy the surface and it would never signal otherwise */ - qxl_fence_releaseable(qdev, release); - qxl_push_command_ring_release(qdev, release, QXL_CMD_SURFACE, false); - - qxl_release_unreserve(qdev, release); + qxl_release_fence_buffer_objects(release); surf->hw_surf_alloc = true; spin_lock(&qdev->surf_id_idr_lock); @@ -573,12 +570,9 @@ int qxl_hw_surface_dealloc(struct qxl_device *qdev, cmd->surface_id = id; qxl_release_unmap(qdev, release, &cmd->release_info); - qxl_fence_releaseable(qdev, release); - qxl_push_command_ring_release(qdev, release, QXL_CMD_SURFACE, false); - qxl_release_unreserve(qdev, release); - + qxl_release_fence_buffer_objects(release); return 0; } diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c index f76f5dd7bfc..835caba026d 100644 --- a/drivers/gpu/drm/qxl/qxl_display.c +++ b/drivers/gpu/drm/qxl/qxl_display.c @@ -179,7 +179,7 @@ static void qxl_crtc_destroy(struct drm_crtc *crtc) kfree(qxl_crtc); } -static void +static int qxl_hide_cursor(struct qxl_device *qdev) { struct qxl_release *release; @@ -188,14 +188,22 @@ qxl_hide_cursor(struct qxl_device *qdev) ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD, &release, NULL); + if (ret) + return ret; + + ret = qxl_release_reserve_list(release, true); + if (ret) { + qxl_release_free(qdev, release); + return ret; + } cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); cmd->type = QXL_CURSOR_HIDE; qxl_release_unmap(qdev, release, &cmd->release_info); - qxl_fence_releaseable(qdev, release); qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); - qxl_release_unreserve(qdev, release); + qxl_release_fence_buffer_objects(release); + return 0; } static int qxl_crtc_cursor_set2(struct drm_crtc *crtc, @@ -216,10 +224,8 @@ static int qxl_crtc_cursor_set2(struct drm_crtc *crtc, int size = 64*64*4; int ret = 0; - if (!handle) { - qxl_hide_cursor(qdev); - return 0; - } + if (!handle) + return qxl_hide_cursor(qdev); obj = drm_gem_object_lookup(crtc->dev, file_priv, handle); if (!obj) { @@ -234,8 +240,9 @@ static int qxl_crtc_cursor_set2(struct drm_crtc *crtc, goto out_unref; ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL); + qxl_bo_unreserve(user_bo); if (ret) - goto out_unreserve; + goto out_unref; ret = qxl_bo_kmap(user_bo, &user_ptr); if (ret) @@ -246,14 +253,20 @@ static int qxl_crtc_cursor_set2(struct drm_crtc *crtc, &release, NULL); if (ret) goto out_kunmap; - ret = qxl_alloc_bo_reserved(qdev, sizeof(struct qxl_cursor) + size, - &cursor_bo); + + ret = qxl_alloc_bo_reserved(qdev, release, sizeof(struct qxl_cursor) + size, + &cursor_bo); if (ret) goto out_free_release; - ret = qxl_bo_kmap(cursor_bo, (void **)&cursor); + + ret = qxl_release_reserve_list(release, false); if (ret) goto out_free_bo; + ret = qxl_bo_kmap(cursor_bo, (void **)&cursor); + if (ret) + goto out_backoff; + cursor->header.unique = 0; cursor->header.type = SPICE_CURSOR_TYPE_ALPHA; cursor->header.width = 64; @@ -269,11 +282,7 @@ static int qxl_crtc_cursor_set2(struct drm_crtc *crtc, qxl_bo_kunmap(cursor_bo); - /* finish with the userspace bo */ qxl_bo_kunmap(user_bo); - qxl_bo_unpin(user_bo); - qxl_bo_unreserve(user_bo); - drm_gem_object_unreference_unlocked(obj); cmd = (struct qxl_cursor_cmd *)qxl_release_map(qdev, release); cmd->type = QXL_CURSOR_SET; @@ -281,30 +290,35 @@ static int qxl_crtc_cursor_set2(struct drm_crtc *crtc, cmd->u.set.position.y = qcrtc->cur_y; cmd->u.set.shape = qxl_bo_physical_address(qdev, cursor_bo, 0); - qxl_release_add_res(qdev, release, cursor_bo); cmd->u.set.visible = 1; qxl_release_unmap(qdev, release, &cmd->release_info); - qxl_fence_releaseable(qdev, release); qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); - qxl_release_unreserve(qdev, release); + qxl_release_fence_buffer_objects(release); + + /* finish with the userspace bo */ + ret = qxl_bo_reserve(user_bo, false); + if (!ret) { + qxl_bo_unpin(user_bo); + qxl_bo_unreserve(user_bo); + } + drm_gem_object_unreference_unlocked(obj); - qxl_bo_unreserve(cursor_bo); qxl_bo_unref(&cursor_bo); return ret; + +out_backoff: + qxl_release_backoff_reserve_list(release); out_free_bo: qxl_bo_unref(&cursor_bo); out_free_release: - qxl_release_unreserve(qdev, release); qxl_release_free(qdev, release); out_kunmap: qxl_bo_kunmap(user_bo); out_unpin: qxl_bo_unpin(user_bo); -out_unreserve: - qxl_bo_unreserve(user_bo); out_unref: drm_gem_object_unreference_unlocked(obj); return ret; @@ -322,6 +336,14 @@ static int qxl_crtc_cursor_move(struct drm_crtc *crtc, ret = qxl_alloc_release_reserved(qdev, sizeof(*cmd), QXL_RELEASE_CURSOR_CMD, &release, NULL); + if (ret) + return ret; + + ret = qxl_release_reserve_list(release, true); + if (ret) { + qxl_release_free(qdev, release); + return ret; + } qcrtc->cur_x = x; qcrtc->cur_y = y; @@ -332,9 +354,9 @@ static int qxl_crtc_cursor_move(struct drm_crtc *crtc, cmd->u.position.y = qcrtc->cur_y; qxl_release_unmap(qdev, release, &cmd->release_info); - qxl_fence_releaseable(qdev, release); qxl_push_cursor_ring_release(qdev, release, QXL_CMD_CURSOR, false); - qxl_release_unreserve(qdev, release); + qxl_release_fence_buffer_objects(release); + return 0; } diff --git a/drivers/gpu/drm/qxl/qxl_draw.c b/drivers/gpu/drm/qxl/qxl_draw.c index 3c8c3dbf937..56e1d633875 100644 --- a/drivers/gpu/drm/qxl/qxl_draw.c +++ b/drivers/gpu/drm/qxl/qxl_draw.c @@ -23,25 +23,29 @@ #include "qxl_drv.h" #include "qxl_object.h" +static int alloc_clips(struct qxl_device *qdev, + struct qxl_release *release, + unsigned num_clips, + struct qxl_bo **clips_bo) +{ + int size = sizeof(struct qxl_clip_rects) + sizeof(struct qxl_rect) * num_clips; + + return qxl_alloc_bo_reserved(qdev, release, size, clips_bo); +} + /* returns a pointer to the already allocated qxl_rect array inside * the qxl_clip_rects. This is *not* the same as the memory allocated * on the device, it is offset to qxl_clip_rects.chunk.data */ static struct qxl_rect *drawable_set_clipping(struct qxl_device *qdev, struct qxl_drawable *drawable, unsigned num_clips, - struct qxl_bo **clips_bo, - struct qxl_release *release) + struct qxl_bo *clips_bo) { struct qxl_clip_rects *dev_clips; int ret; - int size = sizeof(*dev_clips) + sizeof(struct qxl_rect) * num_clips; - ret = qxl_alloc_bo_reserved(qdev, size, clips_bo); - if (ret) - return NULL; - ret = qxl_bo_kmap(*clips_bo, (void **)&dev_clips); + ret = qxl_bo_kmap(clips_bo, (void **)&dev_clips); if (ret) { - qxl_bo_unref(clips_bo); return NULL; } dev_clips->num_rects = num_clips; @@ -51,21 +55,35 @@ static struct qxl_rect *drawable_set_clipping(struct qxl_device *qdev, return (struct qxl_rect *)dev_clips->chunk.data; } +static int +alloc_drawable(struct qxl_device *qdev, struct qxl_release **release) +{ + int ret; + ret = qxl_alloc_release_reserved(qdev, sizeof(struct qxl_drawable), + QXL_RELEASE_DRAWABLE, release, + NULL); + return ret; +} + +static void +free_drawable(struct qxl_device *qdev, struct qxl_release *release) +{ + qxl_release_free(qdev, release); +} + +/* release needs to be reserved at this point */ static int make_drawable(struct qxl_device *qdev, int surface, uint8_t type, const struct qxl_rect *rect, - struct qxl_release **release) + struct qxl_release *release) { struct qxl_drawable *drawable; - int i, ret; + int i; - ret = qxl_alloc_release_reserved(qdev, sizeof(*drawable), - QXL_RELEASE_DRAWABLE, release, - NULL); - if (ret) - return ret; + drawable = (struct qxl_drawable *)qxl_release_map(qdev, release); + if (!drawable) + return -ENOMEM; - drawable = (struct qxl_drawable *)qxl_release_map(qdev, *release); drawable->type = type; drawable->surface_id = surface; /* Only primary for now */ @@ -91,14 +109,23 @@ make_drawable(struct qxl_device *qdev, int surface, uint8_t type, drawable->bbox = *rect; drawable->mm_time = qdev->rom->mm_clock; - qxl_release_unmap(qdev, *release, &drawable->release_info); + qxl_release_unmap(qdev, release, &drawable->release_info); return 0; } -static int qxl_palette_create_1bit(struct qxl_bo **palette_bo, +static int alloc_palette_object(struct qxl_device *qdev, + struct qxl_release *release, + struct qxl_bo **palette_bo) +{ + return qxl_alloc_bo_reserved(qdev, release, + sizeof(struct qxl_palette) + sizeof(uint32_t) * 2, + palette_bo); +} + +static int qxl_palette_create_1bit(struct qxl_bo *palette_bo, + struct qxl_release *release, const struct qxl_fb_image *qxl_fb_image) { - struct qxl_device *qdev = qxl_fb_image->qdev; const struct fb_image *fb_image = &qxl_fb_image->fb_image; uint32_t visual = qxl_fb_image->visual; const uint32_t *pseudo_palette = qxl_fb_image->pseudo_palette; @@ -108,12 +135,7 @@ static int qxl_palette_create_1bit(struct qxl_bo **palette_bo, static uint64_t unique; /* we make no attempt to actually set this * correctly globaly, since that would require * tracking all of our palettes. */ - - ret = qxl_alloc_bo_reserved(qdev, - sizeof(struct qxl_palette) + sizeof(uint32_t) * 2, - palette_bo); - - ret = qxl_bo_kmap(*palette_bo, (void **)&pal); + ret = qxl_bo_kmap(palette_bo, (void **)&pal); pal->num_ents = 2; pal->unique = unique++; if (visual == FB_VISUAL_TRUECOLOR || visual == FB_VISUAL_DIRECTCOLOR) { @@ -126,7 +148,7 @@ static int qxl_palette_create_1bit(struct qxl_bo **palette_bo, } pal->ents[0] = bgcolor; pal->ents[1] = fgcolor; - qxl_bo_kunmap(*palette_bo); + qxl_bo_kunmap(palette_bo); return 0; } @@ -144,44 +166,63 @@ void qxl_draw_opaque_fb(const struct qxl_fb_image *qxl_fb_image, const char *src = fb_image->data; int depth = fb_image->depth; struct qxl_release *release; - struct qxl_bo *image_bo; struct qxl_image *image; int ret; - + struct qxl_drm_image *dimage; + struct qxl_bo *palette_bo = NULL; if (stride == 0) stride = depth * width / 8; + ret = alloc_drawable(qdev, &release); + if (ret) + return; + + ret = qxl_image_alloc_objects(qdev, release, + &dimage, + height, stride); + if (ret) + goto out_free_drawable; + + if (depth == 1) { + ret = alloc_palette_object(qdev, release, &palette_bo); + if (ret) + goto out_free_image; + } + + /* do a reservation run over all the objects we just allocated */ + ret = qxl_release_reserve_list(release, true); + if (ret) + goto out_free_palette; + rect.left = x; rect.right = x + width; rect.top = y; rect.bottom = y + height; - ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &rect, &release); - if (ret) - return; + ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &rect, release); + if (ret) { + qxl_release_backoff_reserve_list(release); + goto out_free_palette; + } - ret = qxl_image_create(qdev, release, &image_bo, - (const uint8_t *)src, 0, 0, - width, height, depth, stride); + ret = qxl_image_init(qdev, release, dimage, + (const uint8_t *)src, 0, 0, + width, height, depth, stride); if (ret) { - qxl_release_unreserve(qdev, release); + qxl_release_backoff_reserve_list(release); qxl_release_free(qdev, release); return; } if (depth == 1) { - struct qxl_bo *palette_bo; void *ptr; - ret = qxl_palette_create_1bit(&palette_bo, qxl_fb_image); - qxl_release_add_res(qdev, release, palette_bo); + ret = qxl_palette_create_1bit(palette_bo, release, qxl_fb_image); - ptr = qxl_bo_kmap_atomic_page(qdev, image_bo, 0); + ptr = qxl_bo_kmap_atomic_page(qdev, dimage->bo, 0); image = ptr; image->u.bitmap.palette = qxl_bo_physical_address(qdev, palette_bo, 0); - qxl_bo_kunmap_atomic_page(qdev, image_bo, ptr); - qxl_bo_unreserve(palette_bo); - qxl_bo_unref(&palette_bo); + qxl_bo_kunmap_atomic_page(qdev, dimage->bo, ptr); } drawable = (struct qxl_drawable *)qxl_release_map(qdev, release); @@ -199,16 +240,20 @@ void qxl_draw_opaque_fb(const struct qxl_fb_image *qxl_fb_image, drawable->u.copy.mask.bitmap = 0; drawable->u.copy.src_bitmap = - qxl_bo_physical_address(qdev, image_bo, 0); + qxl_bo_physical_address(qdev, dimage->bo, 0); qxl_release_unmap(qdev, release, &drawable->release_info); - qxl_release_add_res(qdev, release, image_bo); - qxl_bo_unreserve(image_bo); - qxl_bo_unref(&image_bo); - - qxl_fence_releaseable(qdev, release); qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false); - qxl_release_unreserve(qdev, release); + qxl_release_fence_buffer_objects(release); + +out_free_palette: + if (palette_bo) + qxl_bo_unref(&palette_bo); +out_free_image: + qxl_image_free_objects(qdev, dimage); +out_free_drawable: + if (ret) + free_drawable(qdev, release); } /* push a draw command using the given clipping rectangles as @@ -243,10 +288,14 @@ void qxl_draw_dirty_fb(struct qxl_device *qdev, int depth = qxl_fb->base.bits_per_pixel; uint8_t *surface_base; struct qxl_release *release; - struct qxl_bo *image_bo; struct qxl_bo *clips_bo; + struct qxl_drm_image *dimage; int ret; + ret = alloc_drawable(qdev, &release); + if (ret) + return; + left = clips->x1; right = clips->x2; top = clips->y1; @@ -263,36 +312,52 @@ void qxl_draw_dirty_fb(struct qxl_device *qdev, width = right - left; height = bottom - top; + + ret = alloc_clips(qdev, release, num_clips, &clips_bo); + if (ret) + goto out_free_drawable; + + ret = qxl_image_alloc_objects(qdev, release, + &dimage, + height, stride); + if (ret) + goto out_free_clips; + + /* do a reservation run over all the objects we just allocated */ + ret = qxl_release_reserve_list(release, true); + if (ret) + goto out_free_image; + drawable_rect.left = left; drawable_rect.right = right; drawable_rect.top = top; drawable_rect.bottom = bottom; + ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &drawable_rect, - &release); + release); if (ret) - return; + goto out_release_backoff; ret = qxl_bo_kmap(bo, (void **)&surface_base); if (ret) - goto out_unref; + goto out_release_backoff; - ret = qxl_image_create(qdev, release, &image_bo, surface_base, - left, top, width, height, depth, stride); + + ret = qxl_image_init(qdev, release, dimage, surface_base, + left, top, width, height, depth, stride); qxl_bo_kunmap(bo); if (ret) - goto out_unref; + goto out_release_backoff; + + rects = drawable_set_clipping(qdev, drawable, num_clips, clips_bo); + if (!rects) + goto out_release_backoff; - rects = drawable_set_clipping(qdev, drawable, num_clips, &clips_bo, release); - if (!rects) { - qxl_bo_unref(&image_bo); - goto out_unref; - } drawable = (struct qxl_drawable *)qxl_release_map(qdev, release); drawable->clip.type = SPICE_CLIP_TYPE_RECTS; drawable->clip.data = qxl_bo_physical_address(qdev, clips_bo, 0); - qxl_release_add_res(qdev, release, clips_bo); drawable->u.copy.src_area.top = 0; drawable->u.copy.src_area.bottom = height; @@ -306,11 +371,9 @@ void qxl_draw_dirty_fb(struct qxl_device *qdev, drawable->u.copy.mask.pos.y = 0; drawable->u.copy.mask.bitmap = 0; - drawable->u.copy.src_bitmap = qxl_bo_physical_address(qdev, image_bo, 0); + drawable->u.copy.src_bitmap = qxl_bo_physical_address(qdev, dimage->bo, 0); qxl_release_unmap(qdev, release, &drawable->release_info); - qxl_release_add_res(qdev, release, image_bo); - qxl_bo_unreserve(image_bo); - qxl_bo_unref(&image_bo); + clips_ptr = clips; for (i = 0; i < num_clips; i++, clips_ptr += inc) { rects[i].left = clips_ptr->x1; @@ -319,17 +382,22 @@ void qxl_draw_dirty_fb(struct qxl_device *qdev, rects[i].bottom = clips_ptr->y2; } qxl_bo_kunmap(clips_bo); - qxl_bo_unreserve(clips_bo); - qxl_bo_unref(&clips_bo); - qxl_fence_releaseable(qdev, release); qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false); - qxl_release_unreserve(qdev, release); - return; + qxl_release_fence_buffer_objects(release); + +out_release_backoff: + if (ret) + qxl_release_backoff_reserve_list(release); +out_free_image: + qxl_image_free_objects(qdev, dimage); +out_free_clips: + qxl_bo_unref(&clips_bo); +out_free_drawable: + /* only free drawable on error */ + if (ret) + free_drawable(qdev, release); -out_unref: - qxl_release_unreserve(qdev, release); - qxl_release_free(qdev, release); } void qxl_draw_copyarea(struct qxl_device *qdev, @@ -342,22 +410,36 @@ void qxl_draw_copyarea(struct qxl_device *qdev, struct qxl_release *release; int ret; + ret = alloc_drawable(qdev, &release); + if (ret) + return; + + /* do a reservation run over all the objects we just allocated */ + ret = qxl_release_reserve_list(release, true); + if (ret) + goto out_free_release; + rect.left = dx; rect.top = dy; rect.right = dx + width; rect.bottom = dy + height; - ret = make_drawable(qdev, 0, QXL_COPY_BITS, &rect, &release); - if (ret) - return; + ret = make_drawable(qdev, 0, QXL_COPY_BITS, &rect, release); + if (ret) { + qxl_release_backoff_reserve_list(release); + goto out_free_release; + } drawable = (struct qxl_drawable *)qxl_release_map(qdev, release); drawable->u.copy_bits.src_pos.x = sx; drawable->u.copy_bits.src_pos.y = sy; - qxl_release_unmap(qdev, release, &drawable->release_info); - qxl_fence_releaseable(qdev, release); + qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false); - qxl_release_unreserve(qdev, release); + qxl_release_fence_buffer_objects(release); + +out_free_release: + if (ret) + free_drawable(qdev, release); } void qxl_draw_fill(struct qxl_draw_fill *qxl_draw_fill_rec) @@ -370,10 +452,21 @@ void qxl_draw_fill(struct qxl_draw_fill *qxl_draw_fill_rec) struct qxl_release *release; int ret; - ret = make_drawable(qdev, 0, QXL_DRAW_FILL, &rect, &release); + ret = alloc_drawable(qdev, &release); if (ret) return; + /* do a reservation run over all the objects we just allocated */ + ret = qxl_release_reserve_list(release, true); + if (ret) + goto out_free_release; + + ret = make_drawable(qdev, 0, QXL_DRAW_FILL, &rect, release); + if (ret) { + qxl_release_backoff_reserve_list(release); + goto out_free_release; + } + drawable = (struct qxl_drawable *)qxl_release_map(qdev, release); drawable->u.fill.brush.type = SPICE_BRUSH_TYPE_SOLID; drawable->u.fill.brush.u.color = color; @@ -384,7 +477,11 @@ void qxl_draw_fill(struct qxl_draw_fill *qxl_draw_fill_rec) drawable->u.fill.mask.bitmap = 0; qxl_release_unmap(qdev, release, &drawable->release_info); - qxl_fence_releaseable(qdev, release); + qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false); - qxl_release_unreserve(qdev, release); + qxl_release_fence_buffer_objects(release); + +out_free_release: + if (ret) + free_drawable(qdev, release); } diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h index 6a4106fb4c2..7e96f4f1173 100644 --- a/drivers/gpu/drm/qxl/qxl_drv.h +++ b/drivers/gpu/drm/qxl/qxl_drv.h @@ -42,6 +42,9 @@ #include #include +/* just for ttm_validate_buffer */ +#include + #include #include "qxl_dev.h" @@ -118,9 +121,9 @@ struct qxl_bo { uint32_t surface_id; struct qxl_fence fence; /* per bo fence - list of releases */ struct qxl_release *surf_create; - atomic_t reserve_count; }; #define gem_to_qxl_bo(gobj) container_of((gobj), struct qxl_bo, gem_base) +#define to_qxl_bo(tobj) container_of((tobj), struct qxl_bo, tbo) struct qxl_gem { struct mutex mutex; @@ -128,12 +131,7 @@ struct qxl_gem { }; struct qxl_bo_list { - struct list_head lhead; - struct qxl_bo *bo; -}; - -struct qxl_reloc_list { - struct list_head bos; + struct ttm_validate_buffer tv; }; struct qxl_crtc { @@ -195,10 +193,20 @@ enum { struct qxl_release { int id; int type; - int bo_count; uint32_t release_offset; uint32_t surface_release_id; - struct qxl_bo *bos[QXL_MAX_RES]; + struct ww_acquire_ctx ticket; + struct list_head bos; +}; + +struct qxl_drm_chunk { + struct list_head head; + struct qxl_bo *bo; +}; + +struct qxl_drm_image { + struct qxl_bo *bo; + struct list_head chunk_list; }; struct qxl_fb_image { @@ -434,12 +442,19 @@ int qxl_mmap(struct file *filp, struct vm_area_struct *vma); /* qxl image */ -int qxl_image_create(struct qxl_device *qdev, - struct qxl_release *release, - struct qxl_bo **image_bo, - const uint8_t *data, - int x, int y, int width, int height, - int depth, int stride); +int qxl_image_init(struct qxl_device *qdev, + struct qxl_release *release, + struct qxl_drm_image *dimage, + const uint8_t *data, + int x, int y, int width, int height, + int depth, int stride); +int +qxl_image_alloc_objects(struct qxl_device *qdev, + struct qxl_release *release, + struct qxl_drm_image **image_ptr, + int height, int stride); +void qxl_image_free_objects(struct qxl_device *qdev, struct qxl_drm_image *dimage); + void qxl_update_screen(struct qxl_device *qxl); /* qxl io operations (qxl_cmd.c) */ @@ -460,20 +475,15 @@ int qxl_ring_push(struct qxl_ring *ring, const void *new_elt, bool interruptible void qxl_io_flush_release(struct qxl_device *qdev); void qxl_io_flush_surfaces(struct qxl_device *qdev); -int qxl_release_reserve(struct qxl_device *qdev, - struct qxl_release *release, bool no_wait); -void qxl_release_unreserve(struct qxl_device *qdev, - struct qxl_release *release); union qxl_release_info *qxl_release_map(struct qxl_device *qdev, struct qxl_release *release); void qxl_release_unmap(struct qxl_device *qdev, struct qxl_release *release, union qxl_release_info *info); -/* - * qxl_bo_add_resource. - * - */ -void qxl_bo_add_resource(struct qxl_bo *main_bo, struct qxl_bo *resource); +int qxl_release_list_add(struct qxl_release *release, struct qxl_bo *bo); +int qxl_release_reserve_list(struct qxl_release *release, bool no_intr); +void qxl_release_backoff_reserve_list(struct qxl_release *release); +void qxl_release_fence_buffer_objects(struct qxl_release *release); int qxl_alloc_surface_release_reserved(struct qxl_device *qdev, enum qxl_surface_cmd_type surface_cmd_type, @@ -482,15 +492,16 @@ int qxl_alloc_surface_release_reserved(struct qxl_device *qdev, int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size, int type, struct qxl_release **release, struct qxl_bo **rbo); -int qxl_fence_releaseable(struct qxl_device *qdev, - struct qxl_release *release); + int qxl_push_command_ring_release(struct qxl_device *qdev, struct qxl_release *release, uint32_t type, bool interruptible); int qxl_push_cursor_ring_release(struct qxl_device *qdev, struct qxl_release *release, uint32_t type, bool interruptible); -int qxl_alloc_bo_reserved(struct qxl_device *qdev, unsigned long size, +int qxl_alloc_bo_reserved(struct qxl_device *qdev, + struct qxl_release *release, + unsigned long size, struct qxl_bo **_bo); /* qxl drawing commands */ @@ -511,15 +522,9 @@ void qxl_draw_copyarea(struct qxl_device *qdev, u32 sx, u32 sy, u32 dx, u32 dy); -uint64_t -qxl_release_alloc(struct qxl_device *qdev, int type, - struct qxl_release **ret); - void qxl_release_free(struct qxl_device *qdev, struct qxl_release *release); -void qxl_release_add_res(struct qxl_device *qdev, - struct qxl_release *release, - struct qxl_bo *bo); + /* used by qxl_debugfs_release */ struct qxl_release *qxl_release_from_id_locked(struct qxl_device *qdev, uint64_t id); @@ -562,7 +567,7 @@ void qxl_surface_evict(struct qxl_device *qdev, struct qxl_bo *surf, bool freein int qxl_update_surface(struct qxl_device *qdev, struct qxl_bo *surf); /* qxl_fence.c */ -int qxl_fence_add_release(struct qxl_fence *qfence, uint32_t rel_id); +void qxl_fence_add_release_locked(struct qxl_fence *qfence, uint32_t rel_id); int qxl_fence_remove_release(struct qxl_fence *qfence, uint32_t rel_id); int qxl_fence_init(struct qxl_device *qdev, struct qxl_fence *qfence); void qxl_fence_fini(struct qxl_fence *qfence); diff --git a/drivers/gpu/drm/qxl/qxl_fence.c b/drivers/gpu/drm/qxl/qxl_fence.c index 63c6715ad38..ae59e91cfb9 100644 --- a/drivers/gpu/drm/qxl/qxl_fence.c +++ b/drivers/gpu/drm/qxl/qxl_fence.c @@ -49,17 +49,11 @@ For some reason every so often qxl hw fails to release, things go wrong. */ - - -int qxl_fence_add_release(struct qxl_fence *qfence, uint32_t rel_id) +/* must be called with the fence lock held */ +void qxl_fence_add_release_locked(struct qxl_fence *qfence, uint32_t rel_id) { - struct qxl_bo *bo = container_of(qfence, struct qxl_bo, fence); - - spin_lock(&bo->tbo.bdev->fence_lock); radix_tree_insert(&qfence->tree, rel_id, qfence); qfence->num_active_releases++; - spin_unlock(&bo->tbo.bdev->fence_lock); - return 0; } int qxl_fence_remove_release(struct qxl_fence *qfence, uint32_t rel_id) diff --git a/drivers/gpu/drm/qxl/qxl_image.c b/drivers/gpu/drm/qxl/qxl_image.c index cf856206996..7fbcc35e8ad 100644 --- a/drivers/gpu/drm/qxl/qxl_image.c +++ b/drivers/gpu/drm/qxl/qxl_image.c @@ -30,31 +30,100 @@ #include "qxl_object.h" static int -qxl_image_create_helper(struct qxl_device *qdev, +qxl_allocate_chunk(struct qxl_device *qdev, + struct qxl_release *release, + struct qxl_drm_image *image, + unsigned int chunk_size) +{ + struct qxl_drm_chunk *chunk; + int ret; + + chunk = kmalloc(sizeof(struct qxl_drm_chunk), GFP_KERNEL); + if (!chunk) + return -ENOMEM; + + ret = qxl_alloc_bo_reserved(qdev, release, chunk_size, &chunk->bo); + if (ret) { + kfree(chunk); + return ret; + } + + list_add_tail(&chunk->head, &image->chunk_list); + return 0; +} + +int +qxl_image_alloc_objects(struct qxl_device *qdev, struct qxl_release *release, - struct qxl_bo **image_bo, - const uint8_t *data, - int width, int height, - int depth, unsigned int hash, - int stride) + struct qxl_drm_image **image_ptr, + int height, int stride) +{ + struct qxl_drm_image *image; + int ret; + + image = kmalloc(sizeof(struct qxl_drm_image), GFP_KERNEL); + if (!image) + return -ENOMEM; + + INIT_LIST_HEAD(&image->chunk_list); + + ret = qxl_alloc_bo_reserved(qdev, release, sizeof(struct qxl_image), &image->bo); + if (ret) { + kfree(image); + return ret; + } + + ret = qxl_allocate_chunk(qdev, release, image, sizeof(struct qxl_data_chunk) + stride * height); + if (ret) { + qxl_bo_unref(&image->bo); + kfree(image); + return ret; + } + *image_ptr = image; + return 0; +} + +void qxl_image_free_objects(struct qxl_device *qdev, struct qxl_drm_image *dimage) { + struct qxl_drm_chunk *chunk, *tmp; + + list_for_each_entry_safe(chunk, tmp, &dimage->chunk_list, head) { + qxl_bo_unref(&chunk->bo); + kfree(chunk); + } + + qxl_bo_unref(&dimage->bo); + kfree(dimage); +} + +static int +qxl_image_init_helper(struct qxl_device *qdev, + struct qxl_release *release, + struct qxl_drm_image *dimage, + const uint8_t *data, + int width, int height, + int depth, unsigned int hash, + int stride) +{ + struct qxl_drm_chunk *drv_chunk; struct qxl_image *image; struct qxl_data_chunk *chunk; int i; int chunk_stride; int linesize = width * depth / 8; - struct qxl_bo *chunk_bo; - int ret; + struct qxl_bo *chunk_bo, *image_bo; void *ptr; /* Chunk */ /* FIXME: Check integer overflow */ /* TODO: variable number of chunks */ + + drv_chunk = list_first_entry(&dimage->chunk_list, struct qxl_drm_chunk, head); + + chunk_bo = drv_chunk->bo; chunk_stride = stride; /* TODO: should use linesize, but it renders wrong (check the bitmaps are sent correctly first) */ - ret = qxl_alloc_bo_reserved(qdev, sizeof(*chunk) + height * chunk_stride, - &chunk_bo); - + ptr = qxl_bo_kmap_atomic_page(qdev, chunk_bo, 0); chunk = ptr; chunk->data_size = height * chunk_stride; @@ -102,7 +171,6 @@ qxl_image_create_helper(struct qxl_device *qdev, while (remain > 0) { page_base = out_offset & PAGE_MASK; page_offset = offset_in_page(out_offset); - size = min((int)(PAGE_SIZE - page_offset), remain); ptr = qxl_bo_kmap_atomic_page(qdev, chunk_bo, page_base); @@ -116,14 +184,10 @@ qxl_image_create_helper(struct qxl_device *qdev, } } } - - qxl_bo_kunmap(chunk_bo); - /* Image */ - ret = qxl_alloc_bo_reserved(qdev, sizeof(*image), image_bo); - - ptr = qxl_bo_kmap_atomic_page(qdev, *image_bo, 0); + image_bo = dimage->bo; + ptr = qxl_bo_kmap_atomic_page(qdev, image_bo, 0); image = ptr; image->descriptor.id = 0; @@ -154,23 +218,20 @@ qxl_image_create_helper(struct qxl_device *qdev, image->u.bitmap.stride = chunk_stride; image->u.bitmap.palette = 0; image->u.bitmap.data = qxl_bo_physical_address(qdev, chunk_bo, 0); - qxl_release_add_res(qdev, release, chunk_bo); - qxl_bo_unreserve(chunk_bo); - qxl_bo_unref(&chunk_bo); - qxl_bo_kunmap_atomic_page(qdev, *image_bo, ptr); + qxl_bo_kunmap_atomic_page(qdev, image_bo, ptr); return 0; } -int qxl_image_create(struct qxl_device *qdev, +int qxl_image_init(struct qxl_device *qdev, struct qxl_release *release, - struct qxl_bo **image_bo, + struct qxl_drm_image *dimage, const uint8_t *data, int x, int y, int width, int height, int depth, int stride) { data += y * stride + x * (depth / 8); - return qxl_image_create_helper(qdev, release, image_bo, data, + return qxl_image_init_helper(qdev, release, dimage, data, width, height, depth, 0, stride); } diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c index 7448c5ea92e..6de33563d6f 100644 --- a/drivers/gpu/drm/qxl/qxl_ioctl.c +++ b/drivers/gpu/drm/qxl/qxl_ioctl.c @@ -68,55 +68,60 @@ static int qxl_map_ioctl(struct drm_device *dev, void *data, &qxl_map->offset); } +struct qxl_reloc_info { + int type; + struct qxl_bo *dst_bo; + uint32_t dst_offset; + struct qxl_bo *src_bo; + int src_offset; +}; + /* * dst must be validated, i.e. whole bo on vram/surfacesram (right now all bo's * are on vram). * *(dst + dst_off) = qxl_bo_physical_address(src, src_off) */ static void -apply_reloc(struct qxl_device *qdev, struct qxl_bo *dst, uint64_t dst_off, - struct qxl_bo *src, uint64_t src_off) +apply_reloc(struct qxl_device *qdev, struct qxl_reloc_info *info) { void *reloc_page; - - reloc_page = qxl_bo_kmap_atomic_page(qdev, dst, dst_off & PAGE_MASK); - *(uint64_t *)(reloc_page + (dst_off & ~PAGE_MASK)) = qxl_bo_physical_address(qdev, - src, src_off); - qxl_bo_kunmap_atomic_page(qdev, dst, reloc_page); + reloc_page = qxl_bo_kmap_atomic_page(qdev, info->dst_bo, info->dst_offset & PAGE_MASK); + *(uint64_t *)(reloc_page + (info->dst_offset & ~PAGE_MASK)) = qxl_bo_physical_address(qdev, + info->src_bo, + info->src_offset); + qxl_bo_kunmap_atomic_page(qdev, info->dst_bo, reloc_page); } static void -apply_surf_reloc(struct qxl_device *qdev, struct qxl_bo *dst, uint64_t dst_off, - struct qxl_bo *src) +apply_surf_reloc(struct qxl_device *qdev, struct qxl_reloc_info *info) { uint32_t id = 0; void *reloc_page; - if (src && !src->is_primary) - id = src->surface_id; + if (info->src_bo && !info->src_bo->is_primary) + id = info->src_bo->surface_id; - reloc_page = qxl_bo_kmap_atomic_page(qdev, dst, dst_off & PAGE_MASK); - *(uint32_t *)(reloc_page + (dst_off & ~PAGE_MASK)) = id; - qxl_bo_kunmap_atomic_page(qdev, dst, reloc_page); + reloc_page = qxl_bo_kmap_atomic_page(qdev, info->dst_bo, info->dst_offset & PAGE_MASK); + *(uint32_t *)(reloc_page + (info->dst_offset & ~PAGE_MASK)) = id; + qxl_bo_kunmap_atomic_page(qdev, info->dst_bo, reloc_page); } /* return holding the reference to this object */ static struct qxl_bo *qxlhw_handle_to_bo(struct qxl_device *qdev, struct drm_file *file_priv, uint64_t handle, - struct qxl_reloc_list *reloc_list) + struct qxl_release *release) { struct drm_gem_object *gobj; struct qxl_bo *qobj; int ret; gobj = drm_gem_object_lookup(qdev->ddev, file_priv, handle); - if (!gobj) { - DRM_ERROR("bad bo handle %lld\n", handle); + if (!gobj) return NULL; - } + qobj = gem_to_qxl_bo(gobj); - ret = qxl_bo_list_add(reloc_list, qobj); + ret = qxl_release_list_add(release, qobj); if (ret) return NULL; @@ -129,151 +134,177 @@ static struct qxl_bo *qxlhw_handle_to_bo(struct qxl_device *qdev, * However, the command as passed from user space must *not* contain the initial * QXLReleaseInfo struct (first XXX bytes) */ -static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv) +static int qxl_process_single_command(struct qxl_device *qdev, + struct drm_qxl_command *cmd, + struct drm_file *file_priv) { - struct qxl_device *qdev = dev->dev_private; - struct drm_qxl_execbuffer *execbuffer = data; - struct drm_qxl_command user_cmd; - int cmd_num; - struct qxl_bo *reloc_src_bo; - struct qxl_bo *reloc_dst_bo; - struct drm_qxl_reloc reloc; + struct qxl_reloc_info *reloc_info; + int release_type; + struct qxl_release *release; + struct qxl_bo *cmd_bo; void *fb_cmd; - int i, ret; - struct qxl_reloc_list reloc_list; + int i, j, ret, num_relocs; int unwritten; - uint32_t reloc_dst_offset; - INIT_LIST_HEAD(&reloc_list.bos); - for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) { - struct qxl_release *release; - struct qxl_bo *cmd_bo; - int release_type; - struct drm_qxl_command *commands = - (struct drm_qxl_command *)(uintptr_t)execbuffer->commands; + switch (cmd->type) { + case QXL_CMD_DRAW: + release_type = QXL_RELEASE_DRAWABLE; + break; + case QXL_CMD_SURFACE: + case QXL_CMD_CURSOR: + default: + DRM_DEBUG("Only draw commands in execbuffers\n"); + return -EINVAL; + break; + } - if (DRM_COPY_FROM_USER(&user_cmd, &commands[cmd_num], - sizeof(user_cmd))) - return -EFAULT; - switch (user_cmd.type) { - case QXL_CMD_DRAW: - release_type = QXL_RELEASE_DRAWABLE; - break; - case QXL_CMD_SURFACE: - case QXL_CMD_CURSOR: - default: - DRM_DEBUG("Only draw commands in execbuffers\n"); - return -EINVAL; - break; - } + if (cmd->command_size > PAGE_SIZE - sizeof(union qxl_release_info)) + return -EINVAL; - if (user_cmd.command_size > PAGE_SIZE - sizeof(union qxl_release_info)) - return -EINVAL; + if (!access_ok(VERIFY_READ, + (void *)(unsigned long)cmd->command, + cmd->command_size)) + return -EFAULT; - if (!access_ok(VERIFY_READ, - (void *)(unsigned long)user_cmd.command, - user_cmd.command_size)) - return -EFAULT; + reloc_info = kmalloc(sizeof(struct qxl_reloc_info) * cmd->relocs_num, GFP_KERNEL); + if (!reloc_info) + return -ENOMEM; - ret = qxl_alloc_release_reserved(qdev, - sizeof(union qxl_release_info) + - user_cmd.command_size, - release_type, - &release, - &cmd_bo); - if (ret) - return ret; + ret = qxl_alloc_release_reserved(qdev, + sizeof(union qxl_release_info) + + cmd->command_size, + release_type, + &release, + &cmd_bo); + if (ret) + goto out_free_reloc; - /* TODO copy slow path code from i915 */ - fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE)); - unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void *)(unsigned long)user_cmd.command, user_cmd.command_size); + /* TODO copy slow path code from i915 */ + fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE)); + unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void *)(unsigned long)cmd->command, cmd->command_size); - { - struct qxl_drawable *draw = fb_cmd; + { + struct qxl_drawable *draw = fb_cmd; + draw->mm_time = qdev->rom->mm_clock; + } - draw->mm_time = qdev->rom->mm_clock; - } - qxl_bo_kunmap_atomic_page(qdev, cmd_bo, fb_cmd); - if (unwritten) { - DRM_ERROR("got unwritten %d\n", unwritten); - qxl_release_unreserve(qdev, release); - qxl_release_free(qdev, release); - return -EFAULT; + qxl_bo_kunmap_atomic_page(qdev, cmd_bo, fb_cmd); + if (unwritten) { + DRM_ERROR("got unwritten %d\n", unwritten); + ret = -EFAULT; + goto out_free_release; + } + + /* fill out reloc info structs */ + num_relocs = 0; + for (i = 0; i < cmd->relocs_num; ++i) { + struct drm_qxl_reloc reloc; + + if (DRM_COPY_FROM_USER(&reloc, + &((struct drm_qxl_reloc *)(uintptr_t)cmd->relocs)[i], + sizeof(reloc))) { + ret = -EFAULT; + goto out_free_bos; } - for (i = 0 ; i < user_cmd.relocs_num; ++i) { - if (DRM_COPY_FROM_USER(&reloc, - &((struct drm_qxl_reloc *)(uintptr_t)user_cmd.relocs)[i], - sizeof(reloc))) { - qxl_bo_list_unreserve(&reloc_list, true); - qxl_release_unreserve(qdev, release); - qxl_release_free(qdev, release); - return -EFAULT; - } + /* add the bos to the list of bos to validate - + need to validate first then process relocs? */ + if (reloc.reloc_type != QXL_RELOC_TYPE_BO && reloc.reloc_type != QXL_RELOC_TYPE_SURF) { + DRM_DEBUG("unknown reloc type %d\n", reloc_info[i].type); - /* add the bos to the list of bos to validate - - need to validate first then process relocs? */ - if (reloc.dst_handle) { - reloc_dst_bo = qxlhw_handle_to_bo(qdev, file_priv, - reloc.dst_handle, &reloc_list); - if (!reloc_dst_bo) { - qxl_bo_list_unreserve(&reloc_list, true); - qxl_release_unreserve(qdev, release); - qxl_release_free(qdev, release); - return -EINVAL; - } - reloc_dst_offset = 0; - } else { - reloc_dst_bo = cmd_bo; - reloc_dst_offset = release->release_offset; + ret = -EINVAL; + goto out_free_bos; + } + reloc_info[i].type = reloc.reloc_type; + + if (reloc.dst_handle) { + reloc_info[i].dst_bo = qxlhw_handle_to_bo(qdev, file_priv, + reloc.dst_handle, release); + if (!reloc_info[i].dst_bo) { + ret = -EINVAL; + reloc_info[i].src_bo = NULL; + goto out_free_bos; } - - /* reserve and validate the reloc dst bo */ - if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle > 0) { - reloc_src_bo = - qxlhw_handle_to_bo(qdev, file_priv, - reloc.src_handle, &reloc_list); - if (!reloc_src_bo) { - if (reloc_dst_bo != cmd_bo) - drm_gem_object_unreference_unlocked(&reloc_dst_bo->gem_base); - qxl_bo_list_unreserve(&reloc_list, true); - qxl_release_unreserve(qdev, release); - qxl_release_free(qdev, release); - return -EINVAL; - } - } else - reloc_src_bo = NULL; - if (reloc.reloc_type == QXL_RELOC_TYPE_BO) { - apply_reloc(qdev, reloc_dst_bo, reloc_dst_offset + reloc.dst_offset, - reloc_src_bo, reloc.src_offset); - } else if (reloc.reloc_type == QXL_RELOC_TYPE_SURF) { - apply_surf_reloc(qdev, reloc_dst_bo, reloc_dst_offset + reloc.dst_offset, reloc_src_bo); - } else { - DRM_ERROR("unknown reloc type %d\n", reloc.reloc_type); - return -EINVAL; + reloc_info[i].dst_offset = reloc.dst_offset; + } else { + reloc_info[i].dst_bo = cmd_bo; + reloc_info[i].dst_offset = reloc.dst_offset + release->release_offset; + } + num_relocs++; + + /* reserve and validate the reloc dst bo */ + if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle > 0) { + reloc_info[i].src_bo = + qxlhw_handle_to_bo(qdev, file_priv, + reloc.src_handle, release); + if (!reloc_info[i].src_bo) { + if (reloc_info[i].dst_bo != cmd_bo) + drm_gem_object_unreference_unlocked(&reloc_info[i].dst_bo->gem_base); + ret = -EINVAL; + goto out_free_bos; } + reloc_info[i].src_offset = reloc.src_offset; + } else { + reloc_info[i].src_bo = NULL; + reloc_info[i].src_offset = 0; + } + } - if (reloc_src_bo && reloc_src_bo != cmd_bo) { - qxl_release_add_res(qdev, release, reloc_src_bo); - drm_gem_object_unreference_unlocked(&reloc_src_bo->gem_base); - } + /* validate all buffers */ + ret = qxl_release_reserve_list(release, false); + if (ret) + goto out_free_bos; - if (reloc_dst_bo != cmd_bo) - drm_gem_object_unreference_unlocked(&reloc_dst_bo->gem_base); - } - qxl_fence_releaseable(qdev, release); + for (i = 0; i < cmd->relocs_num; ++i) { + if (reloc_info[i].type == QXL_RELOC_TYPE_BO) + apply_reloc(qdev, &reloc_info[i]); + else if (reloc_info[i].type == QXL_RELOC_TYPE_SURF) + apply_surf_reloc(qdev, &reloc_info[i]); + } - ret = qxl_push_command_ring_release(qdev, release, user_cmd.type, true); - if (ret == -ERESTARTSYS) { - qxl_release_unreserve(qdev, release); - qxl_release_free(qdev, release); - qxl_bo_list_unreserve(&reloc_list, true); + ret = qxl_push_command_ring_release(qdev, release, cmd->type, true); + if (ret) + qxl_release_backoff_reserve_list(release); + else + qxl_release_fence_buffer_objects(release); + +out_free_bos: + for (j = 0; j < num_relocs; j++) { + if (reloc_info[j].dst_bo != cmd_bo) + drm_gem_object_unreference_unlocked(&reloc_info[j].dst_bo->gem_base); + if (reloc_info[j].src_bo && reloc_info[j].src_bo != cmd_bo) + drm_gem_object_unreference_unlocked(&reloc_info[j].src_bo->gem_base); + } +out_free_release: + if (ret) + qxl_release_free(qdev, release); +out_free_reloc: + kfree(reloc_info); + return ret; +} + +static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct qxl_device *qdev = dev->dev_private; + struct drm_qxl_execbuffer *execbuffer = data; + struct drm_qxl_command user_cmd; + int cmd_num; + int ret; + + for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) { + + struct drm_qxl_command *commands = + (struct drm_qxl_command *)(uintptr_t)execbuffer->commands; + + if (DRM_COPY_FROM_USER(&user_cmd, &commands[cmd_num], + sizeof(user_cmd))) + return -EFAULT; + + ret = qxl_process_single_command(qdev, &user_cmd, file_priv); + if (ret) return ret; - } - qxl_release_unreserve(qdev, release); } - qxl_bo_list_unreserve(&reloc_list, 0); return 0; } diff --git a/drivers/gpu/drm/qxl/qxl_object.c b/drivers/gpu/drm/qxl/qxl_object.c index 50e7a617716..aa161cddd87 100644 --- a/drivers/gpu/drm/qxl/qxl_object.c +++ b/drivers/gpu/drm/qxl/qxl_object.c @@ -104,7 +104,7 @@ int qxl_bo_create(struct qxl_device *qdev, bo->surface_id = 0; qxl_fence_init(qdev, &bo->fence); INIT_LIST_HEAD(&bo->list); - atomic_set(&bo->reserve_count, 0); + if (surf) bo->surf = *surf; @@ -316,53 +316,6 @@ int qxl_bo_check_id(struct qxl_device *qdev, struct qxl_bo *bo) return 0; } -void qxl_bo_list_unreserve(struct qxl_reloc_list *reloc_list, bool failed) -{ - struct qxl_bo_list *entry, *sf; - - list_for_each_entry_safe(entry, sf, &reloc_list->bos, lhead) { - qxl_bo_unreserve(entry->bo); - list_del(&entry->lhead); - kfree(entry); - } -} - -int qxl_bo_list_add(struct qxl_reloc_list *reloc_list, struct qxl_bo *bo) -{ - struct qxl_bo_list *entry; - int ret; - - list_for_each_entry(entry, &reloc_list->bos, lhead) { - if (entry->bo == bo) - return 0; - } - - entry = kmalloc(sizeof(struct qxl_bo_list), GFP_KERNEL); - if (!entry) - return -ENOMEM; - - entry->bo = bo; - list_add(&entry->lhead, &reloc_list->bos); - - ret = qxl_bo_reserve(bo, false); - if (ret) - return ret; - - if (!bo->pin_count) { - qxl_ttm_placement_from_domain(bo, bo->type, false); - ret = ttm_bo_validate(&bo->tbo, &bo->placement, - true, false); - if (ret) - return ret; - } - - /* allocate a surface for reserved + validated buffers */ - ret = qxl_bo_check_id(bo->gem_base.dev->dev_private, bo); - if (ret) - return ret; - return 0; -} - int qxl_surf_evict(struct qxl_device *qdev) { return ttm_bo_evict_mm(&qdev->mman.bdev, TTM_PL_PRIV0); diff --git a/drivers/gpu/drm/qxl/qxl_object.h b/drivers/gpu/drm/qxl/qxl_object.h index 116637f0934..8cb6167038e 100644 --- a/drivers/gpu/drm/qxl/qxl_object.h +++ b/drivers/gpu/drm/qxl/qxl_object.h @@ -102,6 +102,4 @@ extern int qxl_bo_unpin(struct qxl_bo *bo); extern void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain, bool pinned); extern bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo); -extern int qxl_bo_list_add(struct qxl_reloc_list *reloc_list, struct qxl_bo *bo); -extern void qxl_bo_list_unreserve(struct qxl_reloc_list *reloc_list, bool failed); #endif diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c index b7f1271c601..b61449e52cd 100644 --- a/drivers/gpu/drm/qxl/qxl_release.c +++ b/drivers/gpu/drm/qxl/qxl_release.c @@ -38,7 +38,8 @@ static const int release_size_per_bo[] = { RELEASE_SIZE, SURFACE_RELEASE_SIZE, RELEASE_SIZE }; static const int releases_per_bo[] = { RELEASES_PER_BO, SURFACE_RELEASES_PER_BO, RELEASES_PER_BO }; -uint64_t + +static uint64_t qxl_release_alloc(struct qxl_device *qdev, int type, struct qxl_release **ret) { @@ -53,9 +54,9 @@ qxl_release_alloc(struct qxl_device *qdev, int type, return 0; } release->type = type; - release->bo_count = 0; release->release_offset = 0; release->surface_release_id = 0; + INIT_LIST_HEAD(&release->bos); idr_preload(GFP_KERNEL); spin_lock(&qdev->release_idr_lock); @@ -77,20 +78,20 @@ void qxl_release_free(struct qxl_device *qdev, struct qxl_release *release) { - int i; - - QXL_INFO(qdev, "release %d, type %d, %d bos\n", release->id, - release->type, release->bo_count); + struct qxl_bo_list *entry, *tmp; + QXL_INFO(qdev, "release %d, type %d\n", release->id, + release->type); if (release->surface_release_id) qxl_surface_id_dealloc(qdev, release->surface_release_id); - for (i = 0 ; i < release->bo_count; ++i) { + list_for_each_entry_safe(entry, tmp, &release->bos, tv.head) { + struct qxl_bo *bo = to_qxl_bo(entry->tv.bo); QXL_INFO(qdev, "release %llx\n", - release->bos[i]->tbo.addr_space_offset + entry->tv.bo->addr_space_offset - DRM_FILE_OFFSET); - qxl_fence_remove_release(&release->bos[i]->fence, release->id); - qxl_bo_unref(&release->bos[i]); + qxl_fence_remove_release(&bo->fence, release->id); + qxl_bo_unref(&bo); } spin_lock(&qdev->release_idr_lock); idr_remove(&qdev->release_idr, release->id); @@ -98,22 +99,6 @@ qxl_release_free(struct qxl_device *qdev, kfree(release); } -void -qxl_release_add_res(struct qxl_device *qdev, struct qxl_release *release, - struct qxl_bo *bo) -{ - int i; - for (i = 0; i < release->bo_count; i++) - if (release->bos[i] == bo) - return; - - if (release->bo_count >= QXL_MAX_RES) { - DRM_ERROR("exceeded max resource on a qxl_release item\n"); - return; - } - release->bos[release->bo_count++] = qxl_bo_ref(bo); -} - static int qxl_release_bo_alloc(struct qxl_device *qdev, struct qxl_bo **bo) { @@ -125,58 +110,106 @@ static int qxl_release_bo_alloc(struct qxl_device *qdev, return ret; } -int qxl_release_reserve(struct qxl_device *qdev, - struct qxl_release *release, bool no_wait) +int qxl_release_list_add(struct qxl_release *release, struct qxl_bo *bo) +{ + struct qxl_bo_list *entry; + + list_for_each_entry(entry, &release->bos, tv.head) { + if (entry->tv.bo == &bo->tbo) + return 0; + } + + entry = kmalloc(sizeof(struct qxl_bo_list), GFP_KERNEL); + if (!entry) + return -ENOMEM; + + qxl_bo_ref(bo); + entry->tv.bo = &bo->tbo; + list_add_tail(&entry->tv.head, &release->bos); + return 0; +} + +static int qxl_release_validate_bo(struct qxl_bo *bo) { int ret; - if (atomic_inc_return(&release->bos[0]->reserve_count) == 1) { - ret = qxl_bo_reserve(release->bos[0], no_wait); + + if (!bo->pin_count) { + qxl_ttm_placement_from_domain(bo, bo->type, false); + ret = ttm_bo_validate(&bo->tbo, &bo->placement, + true, false); if (ret) return ret; } + + /* allocate a surface for reserved + validated buffers */ + ret = qxl_bo_check_id(bo->gem_base.dev->dev_private, bo); + if (ret) + return ret; return 0; } -void qxl_release_unreserve(struct qxl_device *qdev, - struct qxl_release *release) +int qxl_release_reserve_list(struct qxl_release *release, bool no_intr) { - if (atomic_dec_and_test(&release->bos[0]->reserve_count)) - qxl_bo_unreserve(release->bos[0]); + int ret; + struct qxl_bo_list *entry; + + /* if only one object on the release its the release itself + since these objects are pinned no need to reserve */ + if (list_is_singular(&release->bos)) + return 0; + + ret = ttm_eu_reserve_buffers(&release->ticket, &release->bos); + if (ret) + return ret; + + list_for_each_entry(entry, &release->bos, tv.head) { + struct qxl_bo *bo = to_qxl_bo(entry->tv.bo); + + ret = qxl_release_validate_bo(bo); + if (ret) { + ttm_eu_backoff_reservation(&release->ticket, &release->bos); + return ret; + } + } + return 0; } +void qxl_release_backoff_reserve_list(struct qxl_release *release) +{ + /* if only one object on the release its the release itself + since these objects are pinned no need to reserve */ + if (list_is_singular(&release->bos)) + return; + + ttm_eu_backoff_reservation(&release->ticket, &release->bos); +} + + int qxl_alloc_surface_release_reserved(struct qxl_device *qdev, enum qxl_surface_cmd_type surface_cmd_type, struct qxl_release *create_rel, struct qxl_release **release) { - int ret; - if (surface_cmd_type == QXL_SURFACE_CMD_DESTROY && create_rel) { int idr_ret; + struct qxl_bo_list *entry = list_first_entry(&create_rel->bos, struct qxl_bo_list, tv.head); struct qxl_bo *bo; union qxl_release_info *info; /* stash the release after the create command */ idr_ret = qxl_release_alloc(qdev, QXL_RELEASE_SURFACE_CMD, release); - bo = qxl_bo_ref(create_rel->bos[0]); + bo = qxl_bo_ref(to_qxl_bo(entry->tv.bo)); (*release)->release_offset = create_rel->release_offset + 64; - qxl_release_add_res(qdev, *release, bo); + qxl_release_list_add(*release, bo); - ret = qxl_release_reserve(qdev, *release, false); - if (ret) { - DRM_ERROR("release reserve failed\n"); - goto out_unref; - } info = qxl_release_map(qdev, *release); info->id = idr_ret; qxl_release_unmap(qdev, *release, info); - -out_unref: qxl_bo_unref(&bo); - return ret; + return 0; } return qxl_alloc_release_reserved(qdev, sizeof(struct qxl_surface_cmd), @@ -189,7 +222,7 @@ int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size, { struct qxl_bo *bo; int idr_ret; - int ret; + int ret = 0; union qxl_release_info *info; int cur_idx; @@ -228,36 +261,18 @@ int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size, if (rbo) *rbo = bo; - qxl_release_add_res(qdev, *release, bo); - - ret = qxl_release_reserve(qdev, *release, false); mutex_unlock(&qdev->release_mutex); - if (ret) - goto out_unref; + + qxl_release_list_add(*release, bo); info = qxl_release_map(qdev, *release); info->id = idr_ret; qxl_release_unmap(qdev, *release, info); -out_unref: qxl_bo_unref(&bo); return ret; } -int qxl_fence_releaseable(struct qxl_device *qdev, - struct qxl_release *release) -{ - int i, ret; - for (i = 0; i < release->bo_count; i++) { - if (!release->bos[i]->tbo.sync_obj) - release->bos[i]->tbo.sync_obj = &release->bos[i]->fence; - ret = qxl_fence_add_release(&release->bos[i]->fence, release->id); - if (ret) - return ret; - } - return 0; -} - struct qxl_release *qxl_release_from_id_locked(struct qxl_device *qdev, uint64_t id) { @@ -270,10 +285,7 @@ struct qxl_release *qxl_release_from_id_locked(struct qxl_device *qdev, DRM_ERROR("failed to find id in release_idr\n"); return NULL; } - if (release->bo_count < 1) { - DRM_ERROR("read a released resource with 0 bos\n"); - return NULL; - } + return release; } @@ -282,9 +294,12 @@ union qxl_release_info *qxl_release_map(struct qxl_device *qdev, { void *ptr; union qxl_release_info *info; - struct qxl_bo *bo = release->bos[0]; + struct qxl_bo_list *entry = list_first_entry(&release->bos, struct qxl_bo_list, tv.head); + struct qxl_bo *bo = to_qxl_bo(entry->tv.bo); ptr = qxl_bo_kmap_atomic_page(qdev, bo, release->release_offset & PAGE_SIZE); + if (!ptr) + return NULL; info = ptr + (release->release_offset & ~PAGE_SIZE); return info; } @@ -293,9 +308,51 @@ void qxl_release_unmap(struct qxl_device *qdev, struct qxl_release *release, union qxl_release_info *info) { - struct qxl_bo *bo = release->bos[0]; + struct qxl_bo_list *entry = list_first_entry(&release->bos, struct qxl_bo_list, tv.head); + struct qxl_bo *bo = to_qxl_bo(entry->tv.bo); void *ptr; ptr = ((void *)info) - (release->release_offset & ~PAGE_SIZE); qxl_bo_kunmap_atomic_page(qdev, bo, ptr); } + +void qxl_release_fence_buffer_objects(struct qxl_release *release) +{ + struct ttm_validate_buffer *entry; + struct ttm_buffer_object *bo; + struct ttm_bo_global *glob; + struct ttm_bo_device *bdev; + struct ttm_bo_driver *driver; + struct qxl_bo *qbo; + + /* if only one object on the release its the release itself + since these objects are pinned no need to reserve */ + if (list_is_singular(&release->bos)) + return; + + bo = list_first_entry(&release->bos, struct ttm_validate_buffer, head)->bo; + bdev = bo->bdev; + driver = bdev->driver; + glob = bo->glob; + + spin_lock(&glob->lru_lock); + spin_lock(&bdev->fence_lock); + + list_for_each_entry(entry, &release->bos, head) { + bo = entry->bo; + qbo = to_qxl_bo(bo); + + if (!entry->bo->sync_obj) + entry->bo->sync_obj = &qbo->fence; + + qxl_fence_add_release_locked(&qbo->fence, release->id); + + ttm_bo_add_to_lru(bo); + ww_mutex_unlock(&bo->resv->lock); + entry->reserved = false; + } + spin_unlock(&bdev->fence_lock); + spin_unlock(&glob->lru_lock); + ww_acquire_fini(&release->ticket); +} + -- cgit v1.2.3 From 9310f61a94ec779b2919864c7e66241ff80fe96d Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Wed, 17 Jul 2013 15:13:14 +0300 Subject: mei: hbm: fix typo in error message writet -> write Tested-by: Shuah Khan Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/hbm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c index f9296abcf02..6127ab64bb3 100644 --- a/drivers/misc/mei/hbm.c +++ b/drivers/misc/mei/hbm.c @@ -167,7 +167,7 @@ int mei_hbm_start_req(struct mei_device *dev) dev->hbm_state = MEI_HBM_IDLE; if (mei_write_message(dev, mei_hdr, dev->wr_msg.data)) { - dev_err(&dev->pdev->dev, "version message writet failed\n"); + dev_err(&dev->pdev->dev, "version message write failed\n"); dev->dev_state = MEI_DEV_RESETTING; mei_reset(dev, 1); return -ENODEV; -- cgit v1.2.3 From 315a383ad7dbd484fafb93ef08038e3dbafbb7a8 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Wed, 17 Jul 2013 15:13:15 +0300 Subject: mei: me: fix reset state machine ME HW ready bit is down after hw reset was asserted or on error. Only on error we need to enter the reset flow, additional reset need to be prevented when reset was triggered during initialization , power up/down or a reset is already in progress Tested-by: Shuah Khan Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/hw-me.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index e4f8dec4dc3..a0e19e61e7d 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -483,7 +483,9 @@ irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id) /* check if ME wants a reset */ if (!mei_hw_is_ready(dev) && dev->dev_state != MEI_DEV_RESETTING && - dev->dev_state != MEI_DEV_INITIALIZING) { + dev->dev_state != MEI_DEV_INITIALIZING && + dev->dev_state != MEI_DEV_POWER_DOWN && + dev->dev_state != MEI_DEV_POWER_UP) { dev_dbg(&dev->pdev->dev, "FW not ready.\n"); mei_reset(dev, 1); mutex_unlock(&dev->device_lock); -- cgit v1.2.3 From 99f22c4ef24cf87b0dae6aabe6b5e620b62961d9 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Wed, 17 Jul 2013 15:13:16 +0300 Subject: mei: don't have to clean the state on power up When powering up, we don't have to clean up the device state nothing is connected. Tested-by: Shuah Khan Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/init.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index ed1d75203af..e6f16f83ecd 100644 --- a/drivers/misc/mei/init.c +++ b/drivers/misc/mei/init.c @@ -148,7 +148,8 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled) dev->hbm_state = MEI_HBM_IDLE; - if (dev->dev_state != MEI_DEV_INITIALIZING) { + if (dev->dev_state != MEI_DEV_INITIALIZING && + dev->dev_state != MEI_DEV_POWER_UP) { if (dev->dev_state != MEI_DEV_DISABLED && dev->dev_state != MEI_DEV_POWER_DOWN) dev->dev_state = MEI_DEV_RESETTING; -- cgit v1.2.3 From dab9bf41b23fe700c4a74133e41eb6a21706031e Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Wed, 17 Jul 2013 15:13:17 +0300 Subject: mei: me: fix waiting for hw ready 1. MEI_INTEROP_TIMEOUT is in seconds not in jiffies so we use mei_secs_to_jiffies macro While cold boot is fast this is relevant in resume 2. wait_event_interruptible_timeout can return with -ERESTARTSYS so do not override it with -ETIMEDOUT 3.Adjust error message Tested-by: Shuah Khan Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/hw-me.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index a0e19e61e7d..b22c7e24722 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -239,14 +239,18 @@ static int mei_me_hw_ready_wait(struct mei_device *dev) if (mei_me_hw_is_ready(dev)) return 0; + dev->recvd_hw_ready = false; mutex_unlock(&dev->device_lock); err = wait_event_interruptible_timeout(dev->wait_hw_ready, - dev->recvd_hw_ready, MEI_INTEROP_TIMEOUT); + dev->recvd_hw_ready, + mei_secs_to_jiffies(MEI_INTEROP_TIMEOUT)); mutex_lock(&dev->device_lock); if (!err && !dev->recvd_hw_ready) { + if (!err) + err = -ETIMEDOUT; dev_err(&dev->pdev->dev, - "wait hw ready failed. status = 0x%x\n", err); - return -ETIMEDOUT; + "wait hw ready failed. status = %d\n", err); + return err; } dev->recvd_hw_ready = false; -- cgit v1.2.3 From 33959f88fce9b8d3346d8000b3425814cbc6d6c0 Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Thu, 18 Jul 2013 11:31:51 +1000 Subject: powerpc: Add second POWER8 PVR entry POWER8 comes with two different PVRs. This patch enables the additional PVR in the cputable. The existing entry (PVR=0x4b) is renamed to POWER8E and the new entry (PVR=0x4d) is given POWER8. Signed-off-by: Michael Neuling Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/reg.h | 3 ++- arch/powerpc/kernel/cputable.c | 20 +++++++++++++++++++- arch/powerpc/kernel/prom_init.c | 5 +++-- 3 files changed, 24 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index 5d7d9c2a547..a6840e4e24f 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -1088,7 +1088,8 @@ #define PVR_970MP 0x0044 #define PVR_970GX 0x0045 #define PVR_POWER7p 0x004A -#define PVR_POWER8 0x004B +#define PVR_POWER8E 0x004B +#define PVR_POWER8 0x004D #define PVR_BE 0x0070 #define PVR_PA6T 0x0090 diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index 2a45d0f0438..22973a74df7 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -494,9 +494,27 @@ static struct cpu_spec __initdata cpu_specs[] = { .cpu_restore = __restore_cpu_power7, .platform = "power7+", }, - { /* Power8 */ + { /* Power8E */ .pvr_mask = 0xffff0000, .pvr_value = 0x004b0000, + .cpu_name = "POWER8E (raw)", + .cpu_features = CPU_FTRS_POWER8, + .cpu_user_features = COMMON_USER_POWER8, + .cpu_user_features2 = COMMON_USER2_POWER8, + .mmu_features = MMU_FTRS_POWER8, + .icache_bsize = 128, + .dcache_bsize = 128, + .num_pmcs = 6, + .pmc_type = PPC_PMC_IBM, + .oprofile_cpu_type = "ppc64/power8", + .oprofile_type = PPC_OPROFILE_INVALID, + .cpu_setup = __setup_cpu_power8, + .cpu_restore = __restore_cpu_power8, + .platform = "power8", + }, + { /* Power8 */ + .pvr_mask = 0xffff0000, + .pvr_value = 0x004d0000, .cpu_name = "POWER8 (raw)", .cpu_features = CPU_FTRS_POWER8, .cpu_user_features = COMMON_USER_POWER8, diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 5eccda9fd33..607902424e7 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -644,7 +644,8 @@ unsigned char ibm_architecture_vec[] = { W(0xfffe0000), W(0x003a0000), /* POWER5/POWER5+ */ W(0xffff0000), W(0x003e0000), /* POWER6 */ W(0xffff0000), W(0x003f0000), /* POWER7 */ - W(0xffff0000), W(0x004b0000), /* POWER8 */ + W(0xffff0000), W(0x004b0000), /* POWER8E */ + W(0xffff0000), W(0x004d0000), /* POWER8 */ W(0xffffffff), W(0x0f000004), /* all 2.07-compliant */ W(0xffffffff), W(0x0f000003), /* all 2.06-compliant */ W(0xffffffff), W(0x0f000002), /* all 2.05-compliant */ @@ -706,7 +707,7 @@ unsigned char ibm_architecture_vec[] = { * must match by the macro below. Update the definition if * the structure layout changes. */ -#define IBM_ARCH_VEC_NRCORES_OFFSET 117 +#define IBM_ARCH_VEC_NRCORES_OFFSET 125 W(NR_CPUS), /* number of cores supported */ 0, 0, -- cgit v1.2.3 From 0e0ed6406e61434d3f38fb58aa8464ec4722b77e Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Mon, 15 Jul 2013 14:04:50 +1000 Subject: powerpc/modules: Module CRC relocation fix causes perf issues Module CRCs are implemented as absolute symbols that get resolved by a linker script. We build an intermediate .o that contains an unresolved symbol for each CRC. genksysms parses this .o, calculates the CRCs and writes a linker script that "resolves" the symbols to the calculated CRC. Unfortunately the ppc64 relocatable kernel sees these CRCs as symbols that need relocating and relocates them at boot. Commit d4703aef (module: handle ppc64 relocating kcrctabs when CONFIG_RELOCATABLE=y) added a hook to reverse the bogus relocations. Part of this patch created a symbol at 0x0: # head -2 /proc/kallsyms 0000000000000000 T reloc_start c000000000000000 T .__start This reloc_start symbol is causing lots of confusion to perf. It thinks reloc_start is a massive function that stretches from 0x0 to 0xc000000000000000 and we get various cryptic errors out of perf, including: problem incrementing symbol count, skipping event This patch removes the reloc_start linker script label and instead defines it as PHYSICAL_START. We also need to wrap it with CONFIG_PPC64 because the ppc32 kernel can set a non zero PHYSICAL_START at compile time and we wouldn't want to subtract it from the CRCs in that case. Signed-off-by: Anton Blanchard Cc: Acked-by: Rusty Russell Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/module.h | 5 ++--- arch/powerpc/kernel/vmlinux.lds.S | 3 --- 2 files changed, 2 insertions(+), 6 deletions(-) diff --git a/arch/powerpc/include/asm/module.h b/arch/powerpc/include/asm/module.h index c1df590ec44..49fa55bfbac 100644 --- a/arch/powerpc/include/asm/module.h +++ b/arch/powerpc/include/asm/module.h @@ -82,10 +82,9 @@ struct exception_table_entry; void sort_ex_table(struct exception_table_entry *start, struct exception_table_entry *finish); -#ifdef CONFIG_MODVERSIONS +#if defined(CONFIG_MODVERSIONS) && defined(CONFIG_PPC64) #define ARCH_RELOCATES_KCRCTAB - -extern const unsigned long reloc_start[]; +#define reloc_start PHYSICAL_START #endif #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_MODULE_H */ diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index 654e479802f..f096e72262f 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -38,9 +38,6 @@ jiffies = jiffies_64 + 4; #endif SECTIONS { - . = 0; - reloc_start = .; - . = KERNELBASE; /* -- cgit v1.2.3 From 0b88f772bdf2847461debf417b1ee96043a7cb1b Mon Sep 17 00:00:00 2001 From: Tiejun Chen Date: Mon, 15 Jul 2013 10:36:04 +0800 Subject: powerpc: Access local paca after hard irq disabled In hard_irq_disable(), we accessed the PACA before we hard disabled the interrupts, potentially causing a warning as get_paca() will us debug_smp_processor_id(). Move that to after the disabling, and also use local_paca directly rather than get_paca() to avoid several redundant and useless checks. Signed-off-by: Tiejun Chen Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/hw_irq.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h index ba713f166fa..10be1dd01c6 100644 --- a/arch/powerpc/include/asm/hw_irq.h +++ b/arch/powerpc/include/asm/hw_irq.h @@ -96,10 +96,11 @@ static inline bool arch_irqs_disabled(void) #endif #define hard_irq_disable() do { \ - u8 _was_enabled = get_paca()->soft_enabled; \ + u8 _was_enabled; \ __hard_irq_disable(); \ - get_paca()->soft_enabled = 0; \ - get_paca()->irq_happened |= PACA_IRQ_HARD_DIS; \ + _was_enabled = local_paca->soft_enabled; \ + local_paca->soft_enabled = 0; \ + local_paca->irq_happened |= PACA_IRQ_HARD_DIS; \ if (_was_enabled) \ trace_hardirqs_off(); \ } while(0) -- cgit v1.2.3 From 97645154a9056106a957905c7836a016e5c89b3b Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Sun, 14 Jul 2013 13:02:15 +0200 Subject: powerpc/pseries: Drop "select HOTPLUG" The Kconfig symbol HOTPLUG was removed with commit 40b313608a ("Finally eradicate CONFIG_HOTPLUG"). But there's still one select statement for that symbol. It seems that select statement was added after the patch to remove CONFIG_HOTPLUG was submitted. Anyhow, it is useless and can be dropped. Signed-off-by: Paul Bolle Reviewed-by: Srivatsa S. Bhat Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/pseries/Kconfig | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig index 1bd3399146e..62b4f8025de 100644 --- a/arch/powerpc/platforms/pseries/Kconfig +++ b/arch/powerpc/platforms/pseries/Kconfig @@ -19,7 +19,6 @@ config PPC_PSERIES select ZLIB_DEFLATE select PPC_DOORBELL select HAVE_CONTEXT_TRACKING - select HOTPLUG if SMP select HOTPLUG_CPU if SMP default y -- cgit v1.2.3 From 5d7ead0039b0c9500825b46997896352810efb0b Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Sat, 13 Jul 2013 12:53:40 +1000 Subject: powerpc/perf: Set PPC_FEATURE2_EBB when we register the power8 PMU The presence or absence of EBB is advertised to userspace via the presence or absence of PPC_FEATURE2_EBB in cpu_user_features2. Because the kernel can be built without PMU support, we should only add PPC_FEATURE2_EBB to cpu_user_features2 when we successfully register the power8 PMU support. Signed-off-by: Michael Ellerman Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/perf/power8-pmu.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c index 96a64d6a8bd..09def196f5c 100644 --- a/arch/powerpc/perf/power8-pmu.c +++ b/arch/powerpc/perf/power8-pmu.c @@ -621,10 +621,19 @@ static struct power_pmu power8_pmu = { static int __init init_power8_pmu(void) { + int rc; + if (!cur_cpu_spec->oprofile_cpu_type || strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power8")) return -ENODEV; - return register_power_pmu(&power8_pmu); + rc = register_power_pmu(&power8_pmu); + if (rc) + return rc; + + /* Tell userspace that EBB is supported */ + cur_cpu_spec->cpu_user_features2 |= PPC_FEATURE2_EBB; + + return 0; } early_initcall(init_power8_pmu); -- cgit v1.2.3 From ee1dd1e3dc774cf257012215d996e8e7e370c162 Mon Sep 17 00:00:00 2001 From: Mahesh Salgaonkar Date: Wed, 10 Jul 2013 18:32:56 +0530 Subject: powerpc: Fix the corrupt r3 error during MCE handling. During Machine Check interrupt on pseries platform, R3 generally points to memory region inside RTAS (FWNMI) area. We see r3 corruption because when RTAS delivers the machine check exception it passes the address inside FWNMI area with the top most bit set. This patch fixes this issue by masking top two bit in machine check exception handler. Signed-off-by: Mahesh Salgaonkar Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/pseries/ras.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c index 7b3cbde8c78..721c0586b28 100644 --- a/arch/powerpc/platforms/pseries/ras.c +++ b/arch/powerpc/platforms/pseries/ras.c @@ -287,6 +287,9 @@ static struct rtas_error_log *fwnmi_get_errinfo(struct pt_regs *regs) unsigned long *savep; struct rtas_error_log *h, *errhdr = NULL; + /* Mask top two bits */ + regs->gpr[3] &= ~(0x3UL << 62); + if (!VALID_FWNMI_BUFFER(regs->gpr[3])) { printk(KERN_ERR "FWNMI: corrupt r3 0x%016lx\n", regs->gpr[3]); return NULL; -- cgit v1.2.3 From 0ba178888b05a4efdaca7da528c170bd09f9687b Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Wed, 24 Jul 2013 10:24:51 +0800 Subject: powerpc/eeh: Remove reference to PCI device We will rely on pcibios_release_device() to remove the EEH cache and unbind EEH device for the specific PCI device. So we shouldn't hold the reference to the PCI device from EEH cache and EEH device. Otherwise, pcibios_release_device() won't be called as we expected. The patch removes the reference to the PCI device in EEH core. Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/eeh.c | 4 ---- arch/powerpc/kernel/eeh_cache.c | 18 +++++------------- 2 files changed, 5 insertions(+), 17 deletions(-) diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c index 39954fe941b..b5c425ea297 100644 --- a/arch/powerpc/kernel/eeh.c +++ b/arch/powerpc/kernel/eeh.c @@ -499,8 +499,6 @@ unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned lon } eeh_dev_check_failure(edev); - - pci_dev_put(eeh_dev_to_pci_dev(edev)); return val; } @@ -904,7 +902,6 @@ static void eeh_add_device_late(struct pci_dev *dev) } WARN_ON(edev->pdev); - pci_dev_get(dev); edev->pdev = dev; dev->dev.archdata.edev = edev; @@ -992,7 +989,6 @@ static void eeh_remove_device(struct pci_dev *dev, int purge_pe) } edev->pdev = NULL; dev->dev.archdata.edev = NULL; - pci_dev_put(dev); eeh_rmv_from_parent_pe(edev, purge_pe); eeh_addr_cache_rmv_dev(dev); diff --git a/arch/powerpc/kernel/eeh_cache.c b/arch/powerpc/kernel/eeh_cache.c index f9ac1232a74..e8c9fd546a5 100644 --- a/arch/powerpc/kernel/eeh_cache.c +++ b/arch/powerpc/kernel/eeh_cache.c @@ -68,16 +68,12 @@ static inline struct eeh_dev *__eeh_addr_cache_get_device(unsigned long addr) struct pci_io_addr_range *piar; piar = rb_entry(n, struct pci_io_addr_range, rb_node); - if (addr < piar->addr_lo) { + if (addr < piar->addr_lo) n = n->rb_left; - } else { - if (addr > piar->addr_hi) { - n = n->rb_right; - } else { - pci_dev_get(piar->pcidev); - return piar->edev; - } - } + else if (addr > piar->addr_hi) + n = n->rb_right; + else + return piar->edev; } return NULL; @@ -156,7 +152,6 @@ eeh_addr_cache_insert(struct pci_dev *dev, unsigned long alo, if (!piar) return NULL; - pci_dev_get(dev); piar->addr_lo = alo; piar->addr_hi = ahi; piar->edev = pci_dev_to_eeh_dev(dev); @@ -250,7 +245,6 @@ restart: if (piar->pcidev == dev) { rb_erase(n, &pci_io_addr_cache_root.rb_root); - pci_dev_put(piar->pcidev); kfree(piar); goto restart; } @@ -302,12 +296,10 @@ void eeh_addr_cache_build(void) if (!edev) continue; - pci_dev_get(dev); /* matching put is in eeh_remove_device() */ dev->dev.archdata.edev = edev; edev->pdev = dev; eeh_addr_cache_insert_dev(dev); - eeh_sysfs_add_device(dev); } -- cgit v1.2.3 From f2856491d24044de08da9e53cf7068841a8b4e1c Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Wed, 24 Jul 2013 10:24:52 +0800 Subject: powerpc/eeh: Export functions for hotplug Make some functions public in order to support hotplug on either specific PCI bus or PCI device in future. Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/eeh.h | 9 +++++++++ arch/powerpc/kernel/eeh.c | 6 +++--- 2 files changed, 12 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index 09a8743143f..d9d35c27de2 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -209,9 +209,12 @@ unsigned long eeh_check_failure(const volatile void __iomem *token, unsigned long val); int eeh_dev_check_failure(struct eeh_dev *edev); void eeh_addr_cache_build(void); +void eeh_add_device_early(struct device_node *); void eeh_add_device_tree_early(struct device_node *); +void eeh_add_device_late(struct pci_dev *); void eeh_add_device_tree_late(struct pci_bus *); void eeh_add_sysfs_files(struct pci_bus *); +void eeh_remove_device(struct pci_dev *, int); void eeh_remove_bus_device(struct pci_dev *, int); /** @@ -252,12 +255,18 @@ static inline unsigned long eeh_check_failure(const volatile void __iomem *token static inline void eeh_addr_cache_build(void) { } +static inline void eeh_add_device_early(struct device_node *dn) { } + static inline void eeh_add_device_tree_early(struct device_node *dn) { } +static inline void eeh_add_device_late(struct pci_dev *dev) { } + static inline void eeh_add_device_tree_late(struct pci_bus *bus) { } static inline void eeh_add_sysfs_files(struct pci_bus *bus) { } +static inline void eeh_remove_device(struct pci_dev *dev, int purge_pe) { } + static inline void eeh_remove_bus_device(struct pci_dev *dev, int purge_pe) { } #define EEH_POSSIBLE_ERROR(val, type) (0) diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c index b5c425ea297..582ad1ef46a 100644 --- a/arch/powerpc/kernel/eeh.c +++ b/arch/powerpc/kernel/eeh.c @@ -836,7 +836,7 @@ core_initcall_sync(eeh_init); * on the CEC architecture, type of the device, on earlier boot * command-line arguments & etc. */ -static void eeh_add_device_early(struct device_node *dn) +void eeh_add_device_early(struct device_node *dn) { struct pci_controller *phb; @@ -884,7 +884,7 @@ EXPORT_SYMBOL_GPL(eeh_add_device_tree_early); * This routine must be used to complete EEH initialization for PCI * devices that were added after system boot (e.g. hotplug, dlpar). */ -static void eeh_add_device_late(struct pci_dev *dev) +void eeh_add_device_late(struct pci_dev *dev) { struct device_node *dn; struct eeh_dev *edev; @@ -972,7 +972,7 @@ EXPORT_SYMBOL_GPL(eeh_add_sysfs_files); * this device will no longer be detected after this call; thus, * i/o errors affecting this slot may leave this device unusable. */ -static void eeh_remove_device(struct pci_dev *dev, int purge_pe) +void eeh_remove_device(struct pci_dev *dev, int purge_pe) { struct eeh_dev *edev; -- cgit v1.2.3 From 008a4938ea07db071f03adffaa3a78c2fbbcde6b Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Wed, 24 Jul 2013 10:24:53 +0800 Subject: powerpc/pci: Override pcibios_release_device() The patch overrides pcibios_release_device() to release EEH resources (EEH cache, unbinding EEH device) for the indicated PCI device. Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/pci-hotplug.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/powerpc/kernel/pci-hotplug.c b/arch/powerpc/kernel/pci-hotplug.c index 3f608800c06..3dab2f2801b 100644 --- a/arch/powerpc/kernel/pci-hotplug.c +++ b/arch/powerpc/kernel/pci-hotplug.c @@ -21,6 +21,17 @@ #include #include +/** + * pcibios_release_device - release PCI device + * @dev: PCI device + * + * The function is called before releasing the indicated PCI device. + */ +void pcibios_release_device(struct pci_dev *dev) +{ + eeh_remove_device(dev, 1); +} + /** * __pcibios_remove_pci_devices - remove all devices under this bus * @bus: the indicated PCI bus -- cgit v1.2.3 From c7b51bce636e4990662bb100bc17e1d4d6c02d34 Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Wed, 24 Jul 2013 10:24:54 +0800 Subject: powerpc/pci/hotplug: Don't need to remove from EEH cache twice Since pcibios_release_device() called by pci_stop_and_remove_bus_device() has removed the device from the EEH cache, we needn't do that again. Cc: Bjorn Helgaas Acked-by: Bjorn Helgaas Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt --- drivers/pci/hotplug/rpadlpar_core.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c index b29e20b7862..bb7af78e4ee 100644 --- a/drivers/pci/hotplug/rpadlpar_core.c +++ b/drivers/pci/hotplug/rpadlpar_core.c @@ -388,7 +388,6 @@ int dlpar_remove_pci_slot(char *drc_name, struct device_node *dn) /* Remove the EADS bridge device itself */ BUG_ON(!bus->self); pr_debug("PCI: Now removing bridge device %s\n", pci_name(bus->self)); - eeh_remove_bus_device(bus->self, true); pci_stop_and_remove_bus_device(bus->self); return 0; -- cgit v1.2.3 From 807a827d4e7455a40e8f56ec2a67c57a91cab9f7 Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Wed, 24 Jul 2013 10:24:55 +0800 Subject: powerpc/eeh: Keep PE during hotplug When we do normal hotplug, the PE (shadow EEH structure) shouldn't be kept around. However, we need to keep it if the hotplug an artifial one caused by EEH errors recovery. Since we remove EEH device through the PCI hook pcibios_release_device(), the flag "purge_pe" passed to various functions is meaningless. So the patch removes the meaningless flag and introduce new flag "EEH_PE_KEEP" to save the PE while doing hotplug during EEH error recovery. Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/eeh.h | 11 +++++------ arch/powerpc/include/asm/pci-bridge.h | 1 - arch/powerpc/kernel/eeh.c | 28 ++-------------------------- arch/powerpc/kernel/eeh_driver.c | 7 +++++-- arch/powerpc/kernel/eeh_pe.c | 7 +++---- arch/powerpc/kernel/pci-hotplug.c | 26 +++++--------------------- 6 files changed, 20 insertions(+), 60 deletions(-) diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index d9d35c27de2..2ce22d7b71a 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -55,6 +55,8 @@ struct device_node; #define EEH_PE_RECOVERING (1 << 1) /* Recovering PE */ #define EEH_PE_PHB_DEAD (1 << 2) /* Dead PHB */ +#define EEH_PE_KEEP (1 << 8) /* Keep PE on hotplug */ + struct eeh_pe { int type; /* PE type: PHB/Bus/Device */ int state; /* PE EEH dependent mode */ @@ -193,7 +195,7 @@ int eeh_phb_pe_create(struct pci_controller *phb); struct eeh_pe *eeh_phb_pe_get(struct pci_controller *phb); struct eeh_pe *eeh_pe_get(struct eeh_dev *edev); int eeh_add_to_parent_pe(struct eeh_dev *edev); -int eeh_rmv_from_parent_pe(struct eeh_dev *edev, int purge_pe); +int eeh_rmv_from_parent_pe(struct eeh_dev *edev); void eeh_pe_update_time_stamp(struct eeh_pe *pe); void *eeh_pe_dev_traverse(struct eeh_pe *root, eeh_traverse_func fn, void *flag); @@ -214,8 +216,7 @@ void eeh_add_device_tree_early(struct device_node *); void eeh_add_device_late(struct pci_dev *); void eeh_add_device_tree_late(struct pci_bus *); void eeh_add_sysfs_files(struct pci_bus *); -void eeh_remove_device(struct pci_dev *, int); -void eeh_remove_bus_device(struct pci_dev *, int); +void eeh_remove_device(struct pci_dev *); /** * EEH_POSSIBLE_ERROR() -- test for possible MMIO failure. @@ -265,9 +266,7 @@ static inline void eeh_add_device_tree_late(struct pci_bus *bus) { } static inline void eeh_add_sysfs_files(struct pci_bus *bus) { } -static inline void eeh_remove_device(struct pci_dev *dev, int purge_pe) { } - -static inline void eeh_remove_bus_device(struct pci_dev *dev, int purge_pe) { } +static inline void eeh_remove_device(struct pci_dev *dev) { } #define EEH_POSSIBLE_ERROR(val, type) (0) #define EEH_IO_ERROR_VALUE(size) (-1UL) diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 2c1d8cb9b26..32d0d2018fa 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -209,7 +209,6 @@ static inline struct eeh_dev *of_node_to_eeh_dev(struct device_node *dn) extern struct pci_bus *pcibios_find_pci_bus(struct device_node *dn); /** Remove all of the PCI devices under this bus */ -extern void __pcibios_remove_pci_devices(struct pci_bus *bus, int purge_pe); extern void pcibios_remove_pci_devices(struct pci_bus *bus); /** Discover new pci devices under this bus, and add them */ diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c index 582ad1ef46a..ce81477316b 100644 --- a/arch/powerpc/kernel/eeh.c +++ b/arch/powerpc/kernel/eeh.c @@ -964,7 +964,6 @@ EXPORT_SYMBOL_GPL(eeh_add_sysfs_files); /** * eeh_remove_device - Undo EEH setup for the indicated pci device * @dev: pci device to be removed - * @purge_pe: remove the PE or not * * This routine should be called when a device is removed from * a running system (e.g. by hotplug or dlpar). It unregisters @@ -972,7 +971,7 @@ EXPORT_SYMBOL_GPL(eeh_add_sysfs_files); * this device will no longer be detected after this call; thus, * i/o errors affecting this slot may leave this device unusable. */ -void eeh_remove_device(struct pci_dev *dev, int purge_pe) +void eeh_remove_device(struct pci_dev *dev) { struct eeh_dev *edev; @@ -990,34 +989,11 @@ void eeh_remove_device(struct pci_dev *dev, int purge_pe) edev->pdev = NULL; dev->dev.archdata.edev = NULL; - eeh_rmv_from_parent_pe(edev, purge_pe); + eeh_rmv_from_parent_pe(edev); eeh_addr_cache_rmv_dev(dev); eeh_sysfs_remove_device(dev); } -/** - * eeh_remove_bus_device - Undo EEH setup for the indicated PCI device - * @dev: PCI device - * @purge_pe: remove the corresponding PE or not - * - * This routine must be called when a device is removed from the - * running system through hotplug or dlpar. The corresponding - * PCI address cache will be removed. - */ -void eeh_remove_bus_device(struct pci_dev *dev, int purge_pe) -{ - struct pci_bus *bus = dev->subordinate; - struct pci_dev *child, *tmp; - - eeh_remove_device(dev, purge_pe); - - if (bus && dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) { - list_for_each_entry_safe(child, tmp, &bus->devices, bus_list) - eeh_remove_bus_device(child, purge_pe); - } -} -EXPORT_SYMBOL_GPL(eeh_remove_bus_device); - static int proc_eeh_show(struct seq_file *m, void *v) { if (0 == eeh_subsystem_enabled) { diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c index 2b1ce17cae5..9ef3bbb8580 100644 --- a/arch/powerpc/kernel/eeh_driver.c +++ b/arch/powerpc/kernel/eeh_driver.c @@ -362,8 +362,10 @@ static int eeh_reset_device(struct eeh_pe *pe, struct pci_bus *bus) * devices are expected to be attached soon when calling * into pcibios_add_pci_devices(). */ - if (bus) - __pcibios_remove_pci_devices(bus, 0); + if (bus) { + eeh_pe_state_mark(pe, EEH_PE_KEEP); + pcibios_remove_pci_devices(bus); + } /* Reset the pci controller. (Asserts RST#; resets config space). * Reconfigure bridges and devices. Don't try to bring the system @@ -386,6 +388,7 @@ static int eeh_reset_device(struct eeh_pe *pe, struct pci_bus *bus) if (bus) { ssleep(5); pcibios_add_pci_devices(bus); + eeh_pe_state_clear(pe, EEH_PE_KEEP); } pe->tstamp = tstamp; diff --git a/arch/powerpc/kernel/eeh_pe.c b/arch/powerpc/kernel/eeh_pe.c index 016588a6f5e..32ef40940ba 100644 --- a/arch/powerpc/kernel/eeh_pe.c +++ b/arch/powerpc/kernel/eeh_pe.c @@ -333,7 +333,7 @@ int eeh_add_to_parent_pe(struct eeh_dev *edev) while (parent) { if (!(parent->type & EEH_PE_INVALID)) break; - parent->type &= ~EEH_PE_INVALID; + parent->type &= ~(EEH_PE_INVALID | EEH_PE_KEEP); parent = parent->parent; } pr_debug("EEH: Add %s to Device PE#%x, Parent PE#%x\n", @@ -397,14 +397,13 @@ int eeh_add_to_parent_pe(struct eeh_dev *edev) /** * eeh_rmv_from_parent_pe - Remove one EEH device from the associated PE * @edev: EEH device - * @purge_pe: remove PE or not * * The PE hierarchy tree might be changed when doing PCI hotplug. * Also, the PCI devices or buses could be removed from the system * during EEH recovery. So we have to call the function remove the * corresponding PE accordingly if necessary. */ -int eeh_rmv_from_parent_pe(struct eeh_dev *edev, int purge_pe) +int eeh_rmv_from_parent_pe(struct eeh_dev *edev) { struct eeh_pe *pe, *parent, *child; int cnt; @@ -431,7 +430,7 @@ int eeh_rmv_from_parent_pe(struct eeh_dev *edev, int purge_pe) if (pe->type & EEH_PE_PHB) break; - if (purge_pe) { + if (!(pe->state & EEH_PE_KEEP)) { if (list_empty(&pe->edevs) && list_empty(&pe->child_list)) { list_del(&pe->child); diff --git a/arch/powerpc/kernel/pci-hotplug.c b/arch/powerpc/kernel/pci-hotplug.c index 3dab2f2801b..fc0831d4971 100644 --- a/arch/powerpc/kernel/pci-hotplug.c +++ b/arch/powerpc/kernel/pci-hotplug.c @@ -29,49 +29,33 @@ */ void pcibios_release_device(struct pci_dev *dev) { - eeh_remove_device(dev, 1); + eeh_remove_device(dev); } /** - * __pcibios_remove_pci_devices - remove all devices under this bus + * pcibios_remove_pci_devices - remove all devices under this bus * @bus: the indicated PCI bus - * @purge_pe: destroy the PE on removal of PCI devices * * Remove all of the PCI devices under this bus both from the * linux pci device tree, and from the powerpc EEH address cache. - * By default, the corresponding PE will be destroied during the - * normal PCI hotplug path. For PCI hotplug during EEH recovery, - * the corresponding PE won't be destroied and deallocated. */ -void __pcibios_remove_pci_devices(struct pci_bus *bus, int purge_pe) +void pcibios_remove_pci_devices(struct pci_bus *bus) { struct pci_dev *dev, *tmp; struct pci_bus *child_bus; /* First go down child busses */ list_for_each_entry(child_bus, &bus->children, node) - __pcibios_remove_pci_devices(child_bus, purge_pe); + pcibios_remove_pci_devices(child_bus); pr_debug("PCI: Removing devices on bus %04x:%02x\n", pci_domain_nr(bus), bus->number); list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) { - pr_debug(" * Removing %s...\n", pci_name(dev)); - eeh_remove_bus_device(dev, purge_pe); + pr_debug(" Removing %s...\n", pci_name(dev)); pci_stop_and_remove_bus_device(dev); } } -/** - * pcibios_remove_pci_devices - remove all devices under this bus - * @bus: the indicated PCI bus - * - * Remove all of the PCI devices under this bus both from the - * linux pci device tree, and from the powerpc EEH address cache. - */ -void pcibios_remove_pci_devices(struct pci_bus *bus) -{ - __pcibios_remove_pci_devices(bus, 1); -} EXPORT_SYMBOL_GPL(pcibios_remove_pci_devices); /** -- cgit v1.2.3 From 9feed42e93d2625db86423cedf8b4b2bed00779e Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Wed, 24 Jul 2013 10:24:56 +0800 Subject: powerpc/eeh: Use safe list traversal when walking EEH devices Currently, we're trasversing the EEH devices list using list_for_each_entry(). That's not safe enough because the EEH devices might be removed from its parent PE while doing iteration. The patch replaces that with list_for_each_entry_safe(). Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/eeh.h | 4 ++-- arch/powerpc/kernel/eeh.c | 4 ++-- arch/powerpc/kernel/eeh_pe.c | 10 +++++----- 3 files changed, 9 insertions(+), 9 deletions(-) diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index 2ce22d7b71a..e8c411b63ca 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -74,8 +74,8 @@ struct eeh_pe { struct list_head child; /* Child PEs */ }; -#define eeh_pe_for_each_dev(pe, edev) \ - list_for_each_entry(edev, &pe->edevs, list) +#define eeh_pe_for_each_dev(pe, edev, tmp) \ + list_for_each_entry_safe(edev, tmp, &pe->edevs, list) /* * The struct is used to trace EEH state for the associated diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c index ce81477316b..56bd4584f61 100644 --- a/arch/powerpc/kernel/eeh.c +++ b/arch/powerpc/kernel/eeh.c @@ -231,7 +231,7 @@ static size_t eeh_gather_pci_data(struct eeh_dev *edev, char * buf, size_t len) void eeh_slot_error_detail(struct eeh_pe *pe, int severity) { size_t loglen = 0; - struct eeh_dev *edev; + struct eeh_dev *edev, *tmp; bool valid_cfg_log = true; /* @@ -251,7 +251,7 @@ void eeh_slot_error_detail(struct eeh_pe *pe, int severity) eeh_pe_restore_bars(pe); pci_regs_buf[0] = 0; - eeh_pe_for_each_dev(pe, edev) { + eeh_pe_for_each_dev(pe, edev, tmp) { loglen += eeh_gather_pci_data(edev, pci_regs_buf + loglen, EEH_PCI_REGS_LOG_LEN - loglen); } diff --git a/arch/powerpc/kernel/eeh_pe.c b/arch/powerpc/kernel/eeh_pe.c index 32ef40940ba..c8b815e45c8 100644 --- a/arch/powerpc/kernel/eeh_pe.c +++ b/arch/powerpc/kernel/eeh_pe.c @@ -176,7 +176,7 @@ void *eeh_pe_dev_traverse(struct eeh_pe *root, eeh_traverse_func fn, void *flag) { struct eeh_pe *pe; - struct eeh_dev *edev; + struct eeh_dev *edev, *tmp; void *ret; if (!root) { @@ -186,7 +186,7 @@ void *eeh_pe_dev_traverse(struct eeh_pe *root, /* Traverse root PE */ for (pe = root; pe; pe = eeh_pe_next(pe, root)) { - eeh_pe_for_each_dev(pe, edev) { + eeh_pe_for_each_dev(pe, edev, tmp) { ret = fn(edev, flag); if (ret) return ret; @@ -501,7 +501,7 @@ static void *__eeh_pe_state_mark(void *data, void *flag) { struct eeh_pe *pe = (struct eeh_pe *)data; int state = *((int *)flag); - struct eeh_dev *tmp; + struct eeh_dev *edev, *tmp; struct pci_dev *pdev; /* @@ -511,8 +511,8 @@ static void *__eeh_pe_state_mark(void *data, void *flag) * the PCI device driver. */ pe->state |= state; - eeh_pe_for_each_dev(pe, tmp) { - pdev = eeh_dev_to_pci_dev(tmp); + eeh_pe_for_each_dev(pe, edev, tmp) { + pdev = eeh_dev_to_pci_dev(edev); if (pdev) pdev->error_state = pci_channel_io_frozen; } -- cgit v1.2.3 From ab444ec97e8bd65fff9d489b9a409fc03979268b Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Wed, 24 Jul 2013 10:24:57 +0800 Subject: powerpc/pci: Partial tree hotplug support When EEH error happens to one specific PE, the device drivers of its attached EEH devices (PCI devices) are checked to see the further action: reset with complete hotplug, or reset without hotplug. However, that's not enough for those PCI devices whose drivers can't support EEH, or those PCI devices without driver. So we need do so-called "partial hotplug" on basis of PCI devices. In the situation, part of PCI devices of the specific PE are unplugged and plugged again after PE reset. The patch changes pcibios_add_pci_devices() so that it can support full hotplug and so-called "partial" hotplug based on device-tree or real hardware. It's notable that pci_of_scan.c has been changed for a bit in order to support the "partial" hotplug based on dev-tree. Most of the generic code already supports that, we just need to plumb it properly on our side. Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/pci-common.c | 2 ++ arch/powerpc/kernel/pci-hotplug.c | 14 ++++++---- arch/powerpc/kernel/pci_of_scan.c | 56 ++++++++++++++++++++++++++++----------- 3 files changed, 51 insertions(+), 21 deletions(-) diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index f46914a0f33..7d22a675fe1 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -1462,6 +1462,8 @@ void pcibios_finish_adding_to_bus(struct pci_bus *bus) /* Allocate bus and devices resources */ pcibios_allocate_bus_resources(bus); pcibios_claim_one_bus(bus); + if (!pci_has_flag(PCI_PROBE_ONLY)) + pci_assign_unassigned_bus_resources(bus); /* Fixup EEH */ eeh_add_device_tree_late(bus); diff --git a/arch/powerpc/kernel/pci-hotplug.c b/arch/powerpc/kernel/pci-hotplug.c index fc0831d4971..c1e17ae68a0 100644 --- a/arch/powerpc/kernel/pci-hotplug.c +++ b/arch/powerpc/kernel/pci-hotplug.c @@ -71,7 +71,7 @@ EXPORT_SYMBOL_GPL(pcibios_remove_pci_devices); */ void pcibios_add_pci_devices(struct pci_bus * bus) { - int slotno, num, mode, pass, max; + int slotno, mode, pass, max; struct pci_dev *dev; struct device_node *dn = pci_bus_to_OF_node(bus); @@ -85,11 +85,15 @@ void pcibios_add_pci_devices(struct pci_bus * bus) /* use ofdt-based probe */ of_rescan_bus(dn, bus); } else if (mode == PCI_PROBE_NORMAL) { - /* use legacy probe */ + /* + * Use legacy probe. In the partial hotplug case, we + * probably have grandchildren devices unplugged. So + * we don't check the return value from pci_scan_slot() in + * order for fully rescan all the way down to pick them up. + * They can have been removed during partial hotplug. + */ slotno = PCI_SLOT(PCI_DN(dn->child)->devfn); - num = pci_scan_slot(bus, PCI_DEVFN(slotno, 0)); - if (!num) - return; + pci_scan_slot(bus, PCI_DEVFN(slotno, 0)); pcibios_setup_bus_devices(bus); max = bus->busn_res.start; for (pass = 0; pass < 2; pass++) { diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c index 6b0ba5854d9..15d9105323b 100644 --- a/arch/powerpc/kernel/pci_of_scan.c +++ b/arch/powerpc/kernel/pci_of_scan.c @@ -230,11 +230,14 @@ void of_scan_pci_bridge(struct pci_dev *dev) return; } - bus = pci_add_new_bus(dev->bus, dev, busrange[0]); + bus = pci_find_bus(pci_domain_nr(dev->bus), busrange[0]); if (!bus) { - printk(KERN_ERR "Failed to create pci bus for %s\n", - node->full_name); - return; + bus = pci_add_new_bus(dev->bus, dev, busrange[0]); + if (!bus) { + printk(KERN_ERR "Failed to create pci bus for %s\n", + node->full_name); + return; + } } bus->primary = dev->bus->number; @@ -292,6 +295,38 @@ void of_scan_pci_bridge(struct pci_dev *dev) } EXPORT_SYMBOL(of_scan_pci_bridge); +static struct pci_dev *of_scan_pci_dev(struct pci_bus *bus, + struct device_node *dn) +{ + struct pci_dev *dev = NULL; + const u32 *reg; + int reglen, devfn; + + pr_debug(" * %s\n", dn->full_name); + if (!of_device_is_available(dn)) + return NULL; + + reg = of_get_property(dn, "reg", ®len); + if (reg == NULL || reglen < 20) + return NULL; + devfn = (reg[0] >> 8) & 0xff; + + /* Check if the PCI device is already there */ + dev = pci_get_slot(bus, devfn); + if (dev) { + pci_dev_put(dev); + return dev; + } + + /* create a new pci_dev for this device */ + dev = of_create_pci_dev(dn, bus, devfn); + if (!dev) + return NULL; + + pr_debug(" dev header type: %x\n", dev->hdr_type); + return dev; +} + /** * __of_scan_bus - given a PCI bus node, setup bus and scan for child devices * @node: device tree node for the PCI bus @@ -302,8 +337,6 @@ static void __of_scan_bus(struct device_node *node, struct pci_bus *bus, int rescan_existing) { struct device_node *child; - const u32 *reg; - int reglen, devfn; struct pci_dev *dev; pr_debug("of_scan_bus(%s) bus no %d...\n", @@ -311,16 +344,7 @@ static void __of_scan_bus(struct device_node *node, struct pci_bus *bus, /* Scan direct children */ for_each_child_of_node(node, child) { - pr_debug(" * %s\n", child->full_name); - if (!of_device_is_available(child)) - continue; - reg = of_get_property(child, "reg", ®len); - if (reg == NULL || reglen < 20) - continue; - devfn = (reg[0] >> 8) & 0xff; - - /* create a new pci_dev for this device */ - dev = of_create_pci_dev(child, bus, devfn); + dev = of_scan_pci_dev(bus, child); if (!dev) continue; pr_debug(" dev header type: %x\n", dev->hdr_type); -- cgit v1.2.3 From f5c57710dd62dd06f176934a8b4b8accbf00f9f8 Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Wed, 24 Jul 2013 10:24:58 +0800 Subject: powerpc/eeh: Use partial hotplug for EEH unaware drivers When EEH error happens to one specific PE, some devices with drivers supporting EEH won't except hotplug on the device. However, there might have other deivces without driver, or with driver without EEH support. For the case, we need do partial hotplug in order to make sure that the PE becomes absolutely quite during reset. Otherise, the PE reset might fail and leads to failure of error recovery. The current code doesn't handle that 'mixed' case properly, it either uses the error callbacks to the drivers, or tries hotplug, but doesn't handle a PE (EEH domain) composed of a combination of the two. The patch intends to support so-called "partial" hotplug for EEH: Before we do reset, we stop and remove those PCI devices without EEH sensitive driver. The corresponding EEH devices are not detached from its PE, but with special flag. After the reset is done, those EEH devices with the special flag will be scanned one by one. Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/eeh.h | 6 ++- arch/powerpc/kernel/eeh.c | 30 +++++++++-- arch/powerpc/kernel/eeh_driver.c | 74 ++++++++++++++++++++++++++-- arch/powerpc/kernel/eeh_pe.c | 20 +++----- arch/powerpc/kernel/eeh_sysfs.c | 7 +++ arch/powerpc/platforms/powernv/eeh-powernv.c | 2 +- arch/powerpc/platforms/pseries/eeh_pseries.c | 2 +- 7 files changed, 117 insertions(+), 24 deletions(-) diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index e8c411b63ca..f54a60131de 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -84,7 +84,8 @@ struct eeh_pe { * another tree except the currently existing tree of PCI * buses and PCI devices */ -#define EEH_DEV_IRQ_DISABLED (1<<0) /* Interrupt disabled */ +#define EEH_DEV_IRQ_DISABLED (1 << 0) /* Interrupt disabled */ +#define EEH_DEV_DISCONNECTED (1 << 1) /* Removing from PE */ struct eeh_dev { int mode; /* EEH mode */ @@ -97,6 +98,7 @@ struct eeh_dev { struct pci_controller *phb; /* Associated PHB */ struct device_node *dn; /* Associated device node */ struct pci_dev *pdev; /* Associated PCI device */ + struct pci_bus *bus; /* PCI bus for partial hotplug */ }; static inline struct device_node *eeh_dev_to_of_node(struct eeh_dev *edev) @@ -197,6 +199,8 @@ struct eeh_pe *eeh_pe_get(struct eeh_dev *edev); int eeh_add_to_parent_pe(struct eeh_dev *edev); int eeh_rmv_from_parent_pe(struct eeh_dev *edev); void eeh_pe_update_time_stamp(struct eeh_pe *pe); +void *eeh_pe_traverse(struct eeh_pe *root, + eeh_traverse_func fn, void *flag); void *eeh_pe_dev_traverse(struct eeh_pe *root, eeh_traverse_func fn, void *flag); void eeh_pe_restore_bars(struct eeh_pe *pe); diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c index 56bd4584f61..a5783f1a7a9 100644 --- a/arch/powerpc/kernel/eeh.c +++ b/arch/powerpc/kernel/eeh.c @@ -900,7 +900,21 @@ void eeh_add_device_late(struct pci_dev *dev) pr_debug("EEH: Already referenced !\n"); return; } - WARN_ON(edev->pdev); + + /* + * The EEH cache might not be removed correctly because of + * unbalanced kref to the device during unplug time, which + * relies on pcibios_release_device(). So we have to remove + * that here explicitly. + */ + if (edev->pdev) { + eeh_rmv_from_parent_pe(edev); + eeh_addr_cache_rmv_dev(edev->pdev); + eeh_sysfs_remove_device(edev->pdev); + + edev->pdev = NULL; + dev->dev.archdata.edev = NULL; + } edev->pdev = dev; dev->dev.archdata.edev = edev; @@ -982,14 +996,24 @@ void eeh_remove_device(struct pci_dev *dev) /* Unregister the device with the EEH/PCI address search system */ pr_debug("EEH: Removing device %s\n", pci_name(dev)); - if (!edev || !edev->pdev) { + if (!edev || !edev->pdev || !edev->pe) { pr_debug("EEH: Not referenced !\n"); return; } + + /* + * During the hotplug for EEH error recovery, we need the EEH + * device attached to the parent PE in order for BAR restore + * a bit later. So we keep it for BAR restore and remove it + * from the parent PE during the BAR resotre. + */ edev->pdev = NULL; dev->dev.archdata.edev = NULL; + if (!(edev->pe->state & EEH_PE_KEEP)) + eeh_rmv_from_parent_pe(edev); + else + edev->mode |= EEH_DEV_DISCONNECTED; - eeh_rmv_from_parent_pe(edev); eeh_addr_cache_rmv_dev(dev); eeh_sysfs_remove_device(dev); } diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c index 9ef3bbb8580..9fda75d1f5a 100644 --- a/arch/powerpc/kernel/eeh_driver.c +++ b/arch/powerpc/kernel/eeh_driver.c @@ -338,6 +338,54 @@ static void *eeh_report_failure(void *data, void *userdata) return NULL; } +static void *eeh_rmv_device(void *data, void *userdata) +{ + struct pci_driver *driver; + struct eeh_dev *edev = (struct eeh_dev *)data; + struct pci_dev *dev = eeh_dev_to_pci_dev(edev); + int *removed = (int *)userdata; + + /* + * Actually, we should remove the PCI bridges as well. + * However, that's lots of complexity to do that, + * particularly some of devices under the bridge might + * support EEH. So we just care about PCI devices for + * simplicity here. + */ + if (!dev || (dev->hdr_type & PCI_HEADER_TYPE_BRIDGE)) + return NULL; + driver = eeh_pcid_get(dev); + if (driver && driver->err_handler) + return NULL; + + /* Remove it from PCI subsystem */ + pr_debug("EEH: Removing %s without EEH sensitive driver\n", + pci_name(dev)); + edev->bus = dev->bus; + edev->mode |= EEH_DEV_DISCONNECTED; + (*removed)++; + + pci_stop_and_remove_bus_device(dev); + + return NULL; +} + +static void *eeh_pe_detach_dev(void *data, void *userdata) +{ + struct eeh_pe *pe = (struct eeh_pe *)data; + struct eeh_dev *edev, *tmp; + + eeh_pe_for_each_dev(pe, edev, tmp) { + if (!(edev->mode & EEH_DEV_DISCONNECTED)) + continue; + + edev->mode &= ~(EEH_DEV_DISCONNECTED | EEH_DEV_IRQ_DISABLED); + eeh_rmv_from_parent_pe(edev); + } + + return NULL; +} + /** * eeh_reset_device - Perform actual reset of a pci slot * @pe: EEH PE @@ -349,8 +397,9 @@ static void *eeh_report_failure(void *data, void *userdata) */ static int eeh_reset_device(struct eeh_pe *pe, struct pci_bus *bus) { + struct pci_bus *frozen_bus = eeh_pe_bus_get(pe); struct timeval tstamp; - int cnt, rc; + int cnt, rc, removed = 0; /* pcibios will clear the counter; save the value */ cnt = pe->freeze_count; @@ -362,10 +411,11 @@ static int eeh_reset_device(struct eeh_pe *pe, struct pci_bus *bus) * devices are expected to be attached soon when calling * into pcibios_add_pci_devices(). */ - if (bus) { - eeh_pe_state_mark(pe, EEH_PE_KEEP); + eeh_pe_state_mark(pe, EEH_PE_KEEP); + if (bus) pcibios_remove_pci_devices(bus); - } + else if (frozen_bus) + eeh_pe_dev_traverse(pe, eeh_rmv_device, &removed); /* Reset the pci controller. (Asserts RST#; resets config space). * Reconfigure bridges and devices. Don't try to bring the system @@ -386,10 +436,24 @@ static int eeh_reset_device(struct eeh_pe *pe, struct pci_bus *bus) * potentially weird things happen. */ if (bus) { + pr_info("EEH: Sleep 5s ahead of complete hotplug\n"); ssleep(5); + + /* + * The EEH device is still connected with its parent + * PE. We should disconnect it so the binding can be + * rebuilt when adding PCI devices. + */ + eeh_pe_traverse(pe, eeh_pe_detach_dev, NULL); pcibios_add_pci_devices(bus); - eeh_pe_state_clear(pe, EEH_PE_KEEP); + } else if (frozen_bus && removed) { + pr_info("EEH: Sleep 5s ahead of partial hotplug\n"); + ssleep(5); + + eeh_pe_traverse(pe, eeh_pe_detach_dev, NULL); + pcibios_add_pci_devices(frozen_bus); } + eeh_pe_state_clear(pe, EEH_PE_KEEP); pe->tstamp = tstamp; pe->freeze_count = cnt; diff --git a/arch/powerpc/kernel/eeh_pe.c b/arch/powerpc/kernel/eeh_pe.c index c8b815e45c8..2aa955ae01a 100644 --- a/arch/powerpc/kernel/eeh_pe.c +++ b/arch/powerpc/kernel/eeh_pe.c @@ -149,8 +149,8 @@ static struct eeh_pe *eeh_pe_next(struct eeh_pe *pe, * callback returns something other than NULL, or no more PEs * to be traversed. */ -static void *eeh_pe_traverse(struct eeh_pe *root, - eeh_traverse_func fn, void *flag) +void *eeh_pe_traverse(struct eeh_pe *root, + eeh_traverse_func fn, void *flag) { struct eeh_pe *pe; void *ret; @@ -409,8 +409,8 @@ int eeh_rmv_from_parent_pe(struct eeh_dev *edev) int cnt; if (!edev->pe) { - pr_warning("%s: No PE found for EEH device %s\n", - __func__, edev->dn->full_name); + pr_debug("%s: No PE found for EEH device %s\n", + __func__, edev->dn->full_name); return -EEXIST; } @@ -728,18 +728,12 @@ static void eeh_restore_device_bars(struct eeh_dev *edev, */ static void *eeh_restore_one_device_bars(void *data, void *flag) { - struct pci_dev *pdev = NULL; struct eeh_dev *edev = (struct eeh_dev *)data; + struct pci_dev *pdev = eeh_dev_to_pci_dev(edev); struct device_node *dn = eeh_dev_to_of_node(edev); - /* Trace the PCI bridge */ - if (eeh_probe_mode_dev()) { - pdev = eeh_dev_to_pci_dev(edev); - if (pdev->hdr_type != PCI_HEADER_TYPE_BRIDGE) - pdev = NULL; - } - - if (pdev) + /* Do special restore for bridges */ + if (pdev->hdr_type == PCI_HEADER_TYPE_BRIDGE) eeh_restore_bridge_bars(pdev, edev, dn); else eeh_restore_device_bars(edev, dn); diff --git a/arch/powerpc/kernel/eeh_sysfs.c b/arch/powerpc/kernel/eeh_sysfs.c index e7ae3484918..61e2a145213 100644 --- a/arch/powerpc/kernel/eeh_sysfs.c +++ b/arch/powerpc/kernel/eeh_sysfs.c @@ -68,6 +68,13 @@ void eeh_sysfs_add_device(struct pci_dev *pdev) void eeh_sysfs_remove_device(struct pci_dev *pdev) { + /* + * The parent directory might have been removed. We needn't + * continue for that case. + */ + if (!pdev->dev.kobj.sd) + return; + device_remove_file(&pdev->dev, &dev_attr_eeh_mode); device_remove_file(&pdev->dev, &dev_attr_eeh_config_addr); device_remove_file(&pdev->dev, &dev_attr_eeh_pe_config_addr); diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c index 969cce73055..a380428cf9c 100644 --- a/arch/powerpc/platforms/powernv/eeh-powernv.c +++ b/arch/powerpc/platforms/powernv/eeh-powernv.c @@ -114,7 +114,7 @@ static int powernv_eeh_dev_probe(struct pci_dev *dev, void *flag) * the root bridge. So it's not reasonable to continue * the probing. */ - if (!dn || !edev) + if (!dn || !edev || edev->pe) return 0; /* Skip for PCI-ISA bridge */ diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c index b456b157d33..0f44f9fe49a 100644 --- a/arch/powerpc/platforms/pseries/eeh_pseries.c +++ b/arch/powerpc/platforms/pseries/eeh_pseries.c @@ -153,7 +153,7 @@ static void *pseries_eeh_of_probe(struct device_node *dn, void *flag) /* Retrieve OF node and eeh device */ edev = of_node_to_eeh_dev(dn); - if (!of_device_is_available(dn)) + if (edev->pe || !of_device_is_available(dn)) return NULL; /* Retrieve class/vendor/device IDs */ -- cgit v1.2.3 From 4b83bd452f17582c8d1c916568fd28a237a2eb46 Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Wed, 24 Jul 2013 10:24:59 +0800 Subject: powerpc/eeh: Don't use pci_dev during BAR restore While restoring BARs for one specific PCI device, the pci_dev instance should have been released. So it's not reliable to use the pci_dev instance on restoring BARs. However, we still need some information (e.g. PCIe capability position, header type) from the pci_dev instance. So we have to store those information to EEH device in advance. Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/eeh.h | 8 +++- arch/powerpc/kernel/eeh_pe.c | 25 ++++++----- arch/powerpc/platforms/powernv/eeh-powernv.c | 11 +++++ arch/powerpc/platforms/pseries/eeh_pseries.c | 63 +++++++++++++++++++++++++++- 4 files changed, 91 insertions(+), 16 deletions(-) diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index f54a60131de..4199d994327 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -84,8 +84,11 @@ struct eeh_pe { * another tree except the currently existing tree of PCI * buses and PCI devices */ -#define EEH_DEV_IRQ_DISABLED (1 << 0) /* Interrupt disabled */ -#define EEH_DEV_DISCONNECTED (1 << 1) /* Removing from PE */ +#define EEH_DEV_BRIDGE (1 << 0) /* PCI bridge */ +#define EEH_DEV_ROOT_PORT (1 << 1) /* PCIe root port */ +#define EEH_DEV_DS_PORT (1 << 2) /* Downstream port */ +#define EEH_DEV_IRQ_DISABLED (1 << 3) /* Interrupt disabled */ +#define EEH_DEV_DISCONNECTED (1 << 4) /* Removing from PE */ struct eeh_dev { int mode; /* EEH mode */ @@ -93,6 +96,7 @@ struct eeh_dev { int config_addr; /* Config address */ int pe_config_addr; /* PE config address */ u32 config_space[16]; /* Saved PCI config space */ + u8 pcie_cap; /* Saved PCIe capability */ struct eeh_pe *pe; /* Associated PE */ struct list_head list; /* Form link list in the PE */ struct pci_controller *phb; /* Associated PHB */ diff --git a/arch/powerpc/kernel/eeh_pe.c b/arch/powerpc/kernel/eeh_pe.c index 2aa955ae01a..f9450537e33 100644 --- a/arch/powerpc/kernel/eeh_pe.c +++ b/arch/powerpc/kernel/eeh_pe.c @@ -578,7 +578,7 @@ void eeh_pe_state_clear(struct eeh_pe *pe, int state) * blocked on normal path during the stage. So we need utilize * eeh operations, which is always permitted. */ -static void eeh_bridge_check_link(struct pci_dev *pdev, +static void eeh_bridge_check_link(struct eeh_dev *edev, struct device_node *dn) { int cap; @@ -589,16 +589,17 @@ static void eeh_bridge_check_link(struct pci_dev *pdev, * We only check root port and downstream ports of * PCIe switches */ - if (!pci_is_pcie(pdev) || - (pci_pcie_type(pdev) != PCI_EXP_TYPE_ROOT_PORT && - pci_pcie_type(pdev) != PCI_EXP_TYPE_DOWNSTREAM)) + if (!(edev->mode & (EEH_DEV_ROOT_PORT | EEH_DEV_DS_PORT))) return; - pr_debug("%s: Check PCIe link for %s ...\n", - __func__, pci_name(pdev)); + pr_debug("%s: Check PCIe link for %04x:%02x:%02x.%01x ...\n", + __func__, edev->phb->global_number, + edev->config_addr >> 8, + PCI_SLOT(edev->config_addr & 0xFF), + PCI_FUNC(edev->config_addr & 0xFF)); /* Check slot status */ - cap = pdev->pcie_cap; + cap = edev->pcie_cap; eeh_ops->read_config(dn, cap + PCI_EXP_SLTSTA, 2, &val); if (!(val & PCI_EXP_SLTSTA_PDS)) { pr_debug(" No card in the slot (0x%04x) !\n", val); @@ -652,8 +653,7 @@ static void eeh_bridge_check_link(struct pci_dev *pdev, #define BYTE_SWAP(OFF) (8*((OFF)/4)+3-(OFF)) #define SAVED_BYTE(OFF) (((u8 *)(edev->config_space))[BYTE_SWAP(OFF)]) -static void eeh_restore_bridge_bars(struct pci_dev *pdev, - struct eeh_dev *edev, +static void eeh_restore_bridge_bars(struct eeh_dev *edev, struct device_node *dn) { int i; @@ -679,7 +679,7 @@ static void eeh_restore_bridge_bars(struct pci_dev *pdev, eeh_ops->write_config(dn, PCI_COMMAND, 4, edev->config_space[1]); /* Check the PCIe link is ready */ - eeh_bridge_check_link(pdev, dn); + eeh_bridge_check_link(edev, dn); } static void eeh_restore_device_bars(struct eeh_dev *edev, @@ -729,12 +729,11 @@ static void eeh_restore_device_bars(struct eeh_dev *edev, static void *eeh_restore_one_device_bars(void *data, void *flag) { struct eeh_dev *edev = (struct eeh_dev *)data; - struct pci_dev *pdev = eeh_dev_to_pci_dev(edev); struct device_node *dn = eeh_dev_to_of_node(edev); /* Do special restore for bridges */ - if (pdev->hdr_type == PCI_HEADER_TYPE_BRIDGE) - eeh_restore_bridge_bars(pdev, edev, dn); + if (edev->mode & EEH_DEV_BRIDGE) + eeh_restore_bridge_bars(edev, dn); else eeh_restore_device_bars(edev, dn); diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c index a380428cf9c..4361a5c7f3a 100644 --- a/arch/powerpc/platforms/powernv/eeh-powernv.c +++ b/arch/powerpc/platforms/powernv/eeh-powernv.c @@ -124,6 +124,17 @@ static int powernv_eeh_dev_probe(struct pci_dev *dev, void *flag) /* Initialize eeh device */ edev->class_code = dev->class; edev->mode = 0; + if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) + edev->mode |= EEH_DEV_BRIDGE; + if (pci_is_pcie(dev)) { + edev->pcie_cap = pci_pcie_cap(dev); + + if (pci_pcie_type(dev) == PCI_EXP_TYPE_ROOT_PORT) + edev->mode |= EEH_DEV_ROOT_PORT; + else if (pci_pcie_type(dev) == PCI_EXP_TYPE_DOWNSTREAM) + edev->mode |= EEH_DEV_DS_PORT; + } + edev->config_addr = ((dev->bus->number << 8) | dev->devfn); edev->pe_config_addr = phb->bdfn_to_pe(phb, dev->bus, dev->devfn & 0xff); diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c index 0f44f9fe49a..9e80f0af311 100644 --- a/arch/powerpc/platforms/pseries/eeh_pseries.c +++ b/arch/powerpc/platforms/pseries/eeh_pseries.c @@ -133,6 +133,48 @@ static int pseries_eeh_init(void) return 0; } +static int pseries_eeh_cap_start(struct device_node *dn) +{ + struct pci_dn *pdn = PCI_DN(dn); + u32 status; + + if (!pdn) + return 0; + + rtas_read_config(pdn, PCI_STATUS, 2, &status); + if (!(status & PCI_STATUS_CAP_LIST)) + return 0; + + return PCI_CAPABILITY_LIST; +} + + +static int pseries_eeh_find_cap(struct device_node *dn, int cap) +{ + struct pci_dn *pdn = PCI_DN(dn); + int pos = pseries_eeh_cap_start(dn); + int cnt = 48; /* Maximal number of capabilities */ + u32 id; + + if (!pos) + return 0; + + while (cnt--) { + rtas_read_config(pdn, pos, 1, &pos); + if (pos < 0x40) + break; + pos &= ~3; + rtas_read_config(pdn, pos + PCI_CAP_LIST_ID, 1, &id); + if (id == 0xff) + break; + if (id == cap) + return pos; + pos += PCI_CAP_LIST_NEXT; + } + + return 0; +} + /** * pseries_eeh_of_probe - EEH probe on the given device * @dn: OF node @@ -146,8 +188,10 @@ static void *pseries_eeh_of_probe(struct device_node *dn, void *flag) { struct eeh_dev *edev; struct eeh_pe pe; + struct pci_dn *pdn = PCI_DN(dn); const u32 *class_code, *vendor_id, *device_id; const u32 *regs; + u32 pcie_flags; int enable = 0; int ret; @@ -167,9 +211,26 @@ static void *pseries_eeh_of_probe(struct device_node *dn, void *flag) if (dn->type && !strcmp(dn->type, "isa")) return NULL; - /* Update class code and mode of eeh device */ + /* + * Update class code and mode of eeh device. We need + * correctly reflects that current device is root port + * or PCIe switch downstream port. + */ edev->class_code = *class_code; + edev->pcie_cap = pseries_eeh_find_cap(dn, PCI_CAP_ID_EXP); edev->mode = 0; + if ((edev->class_code >> 8) == PCI_CLASS_BRIDGE_PCI) { + edev->mode |= EEH_DEV_BRIDGE; + if (edev->pcie_cap) { + rtas_read_config(pdn, edev->pcie_cap + PCI_EXP_FLAGS, + 2, &pcie_flags); + pcie_flags = (pcie_flags & PCI_EXP_FLAGS_TYPE) >> 4; + if (pcie_flags == PCI_EXP_TYPE_ROOT_PORT) + edev->mode |= EEH_DEV_ROOT_PORT; + else if (pcie_flags == PCI_EXP_TYPE_DOWNSTREAM) + edev->mode |= EEH_DEV_DS_PORT; + } + } /* Retrieve the device address */ regs = of_get_property(dn, "reg", NULL); -- cgit v1.2.3 From 91150af3adf67463c4ca7d72d4fe1a84da37792c Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Wed, 24 Jul 2013 10:25:00 +0800 Subject: powerpc/eeh: Fix unbalanced enable for IRQ The patch fixes following issue: Unbalanced enable for IRQ 23 ------------[ cut here ]------------ WARNING: at kernel/irq/manage.c:437 : NIP [c00000000016de8c] .__enable_irq+0x11c/0x140 LR [c00000000016de88] .__enable_irq+0x118/0x140 Call Trace: [c000003ea1f23880] [c00000000016de88] .__enable_irq+0x118/0x140 (unreliable) [c000003ea1f23910] [c00000000016df08] .enable_irq+0x58/0xa0 [c000003ea1f239a0] [c0000000000388b4] .eeh_enable_irq+0xc4/0xe0 [c000003ea1f23a30] [c000000000038a28] .eeh_report_reset+0x78/0x130 [c000003ea1f23ac0] [c000000000037508] .eeh_pe_dev_traverse+0x98/0x170 [c000003ea1f23b60] [c0000000000391ac] .eeh_handle_normal_event+0x2fc/0x3d0 [c000003ea1f23bf0] [c000000000039538] .eeh_handle_event+0x2b8/0x2c0 [c000003ea1f23c90] [c000000000039600] .eeh_event_handler+0xc0/0x170 [c000003ea1f23d30] [c0000000000da9a0] .kthread+0xf0/0x100 [c000003ea1f23e30] [c00000000000a1dc] .ret_from_kernel_thread+0x5c/0x80 Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/eeh_driver.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c index 9fda75d1f5a..36bed5a1275 100644 --- a/arch/powerpc/kernel/eeh_driver.c +++ b/arch/powerpc/kernel/eeh_driver.c @@ -143,10 +143,14 @@ static void eeh_disable_irq(struct pci_dev *dev) static void eeh_enable_irq(struct pci_dev *dev) { struct eeh_dev *edev = pci_dev_to_eeh_dev(dev); + struct irq_desc *desc; if ((edev->mode) & EEH_DEV_IRQ_DISABLED) { edev->mode &= ~EEH_DEV_IRQ_DISABLED; - enable_irq(dev->irq); + + desc = irq_to_desc(dev->irq); + if (desc && desc->depth > 0) + enable_irq(dev->irq); } } -- cgit v1.2.3 From ab55d2187da27414f78056810713c92f9a4350c2 Mon Sep 17 00:00:00 2001 From: Gavin Shan Date: Wed, 24 Jul 2013 10:25:01 +0800 Subject: powerpc/eeh: Introdce flag to protect sysfs The patch introduces flag EEH_DEV_SYSFS to keep track that the sysfs entries for the corresponding EEH device (then PCI device) has been added or removed, in order to avoid race condition. Signed-off-by: Gavin Shan Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/eeh.h | 2 ++ arch/powerpc/kernel/eeh.c | 2 ++ arch/powerpc/kernel/eeh_sysfs.c | 16 +++++++++++++++- arch/powerpc/platforms/powernv/eeh-powernv.c | 4 ++-- arch/powerpc/platforms/pseries/eeh_pseries.c | 2 +- 5 files changed, 22 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index 4199d994327..d3e5e9bc8f9 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -90,6 +90,8 @@ struct eeh_pe { #define EEH_DEV_IRQ_DISABLED (1 << 3) /* Interrupt disabled */ #define EEH_DEV_DISCONNECTED (1 << 4) /* Removing from PE */ +#define EEH_DEV_SYSFS (1 << 8) /* Sysfs created */ + struct eeh_dev { int mode; /* EEH mode */ int class_code; /* Class code of the device */ diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c index a5783f1a7a9..ea9414c8088 100644 --- a/arch/powerpc/kernel/eeh.c +++ b/arch/powerpc/kernel/eeh.c @@ -911,6 +911,7 @@ void eeh_add_device_late(struct pci_dev *dev) eeh_rmv_from_parent_pe(edev); eeh_addr_cache_rmv_dev(edev->pdev); eeh_sysfs_remove_device(edev->pdev); + edev->mode &= ~EEH_DEV_SYSFS; edev->pdev = NULL; dev->dev.archdata.edev = NULL; @@ -1016,6 +1017,7 @@ void eeh_remove_device(struct pci_dev *dev) eeh_addr_cache_rmv_dev(dev); eeh_sysfs_remove_device(dev); + edev->mode &= ~EEH_DEV_SYSFS; } static int proc_eeh_show(struct seq_file *m, void *v) diff --git a/arch/powerpc/kernel/eeh_sysfs.c b/arch/powerpc/kernel/eeh_sysfs.c index 61e2a145213..5d753d4f2c7 100644 --- a/arch/powerpc/kernel/eeh_sysfs.c +++ b/arch/powerpc/kernel/eeh_sysfs.c @@ -56,26 +56,40 @@ EEH_SHOW_ATTR(eeh_pe_config_addr, pe_config_addr, "0x%x"); void eeh_sysfs_add_device(struct pci_dev *pdev) { + struct eeh_dev *edev = pci_dev_to_eeh_dev(pdev); int rc=0; + if (edev && (edev->mode & EEH_DEV_SYSFS)) + return; + rc += device_create_file(&pdev->dev, &dev_attr_eeh_mode); rc += device_create_file(&pdev->dev, &dev_attr_eeh_config_addr); rc += device_create_file(&pdev->dev, &dev_attr_eeh_pe_config_addr); if (rc) printk(KERN_WARNING "EEH: Unable to create sysfs entries\n"); + else if (edev) + edev->mode |= EEH_DEV_SYSFS; } void eeh_sysfs_remove_device(struct pci_dev *pdev) { + struct eeh_dev *edev = pci_dev_to_eeh_dev(pdev); + /* * The parent directory might have been removed. We needn't * continue for that case. */ - if (!pdev->dev.kobj.sd) + if (!pdev->dev.kobj.sd) { + if (edev) + edev->mode &= ~EEH_DEV_SYSFS; return; + } device_remove_file(&pdev->dev, &dev_attr_eeh_mode); device_remove_file(&pdev->dev, &dev_attr_eeh_config_addr); device_remove_file(&pdev->dev, &dev_attr_eeh_pe_config_addr); + + if (edev) + edev->mode &= ~EEH_DEV_SYSFS; } diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c index 4361a5c7f3a..79663d26e6e 100644 --- a/arch/powerpc/platforms/powernv/eeh-powernv.c +++ b/arch/powerpc/platforms/powernv/eeh-powernv.c @@ -122,8 +122,8 @@ static int powernv_eeh_dev_probe(struct pci_dev *dev, void *flag) return 0; /* Initialize eeh device */ - edev->class_code = dev->class; - edev->mode = 0; + edev->class_code = dev->class; + edev->mode &= 0xFFFFFF00; if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) edev->mode |= EEH_DEV_BRIDGE; if (pci_is_pcie(dev)) { diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c index 9e80f0af311..7fbc25b1813 100644 --- a/arch/powerpc/platforms/pseries/eeh_pseries.c +++ b/arch/powerpc/platforms/pseries/eeh_pseries.c @@ -218,7 +218,7 @@ static void *pseries_eeh_of_probe(struct device_node *dn, void *flag) */ edev->class_code = *class_code; edev->pcie_cap = pseries_eeh_find_cap(dn, PCI_CAP_ID_EXP); - edev->mode = 0; + edev->mode &= 0xFFFFFF00; if ((edev->class_code >> 8) == PCI_CLASS_BRIDGE_PCI) { edev->mode |= EEH_DEV_BRIDGE; if (edev->pcie_cap) { -- cgit v1.2.3 From d817468c4b2892b9468e2a0c92116e38a3a61370 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Wed, 24 Jul 2013 13:23:51 +0900 Subject: ARM: S3C24XX: Add missing clkdev entries for s3c2440 UART This patch restores serial port operation which has been broken since commit 60e93575476f ("serial: samsung: enable clock before clearing pending interrupts during init") That commit only uncovered the real issue which was missing clkdev entries for the "uart" clocks on S3C2440. It went unnoticed so far because return value of clk API calls were not being checked at all in the samsung serial port driver. This patch should be backported to at least 3.10 stable kernel, since the serial port has not been working on s3c2440 since 3.10-rc5. Cc: Chander Kashyap Signed-off-by: Sylwester Nawrocki [on S3C2440 SoC based Mini2440 board] Tested-by: Sylwester Nawrocki Reviewed-by: Tomasz Figa Tested-by: Juergen Beisert Cc: [3.10] Signed-off-by: Kukjin Kim --- arch/arm/mach-s3c24xx/clock-s3c2410.c | 161 ++++++++++++++++++----------- arch/arm/mach-s3c24xx/clock-s3c2440.c | 3 + arch/arm/plat-samsung/include/plat/clock.h | 5 + 3 files changed, 106 insertions(+), 63 deletions(-) diff --git a/arch/arm/mach-s3c24xx/clock-s3c2410.c b/arch/arm/mach-s3c24xx/clock-s3c2410.c index 34fffdf6fc1..564553694b5 100644 --- a/arch/arm/mach-s3c24xx/clock-s3c2410.c +++ b/arch/arm/mach-s3c24xx/clock-s3c2410.c @@ -119,66 +119,101 @@ static struct clk init_clocks_off[] = { } }; -static struct clk init_clocks[] = { - { - .name = "lcd", - .parent = &clk_h, - .enable = s3c2410_clkcon_enable, - .ctrlbit = S3C2410_CLKCON_LCDC, - }, { - .name = "gpio", - .parent = &clk_p, - .enable = s3c2410_clkcon_enable, - .ctrlbit = S3C2410_CLKCON_GPIO, - }, { - .name = "usb-host", - .parent = &clk_h, - .enable = s3c2410_clkcon_enable, - .ctrlbit = S3C2410_CLKCON_USBH, - }, { - .name = "usb-device", - .parent = &clk_h, - .enable = s3c2410_clkcon_enable, - .ctrlbit = S3C2410_CLKCON_USBD, - }, { - .name = "timers", - .parent = &clk_p, - .enable = s3c2410_clkcon_enable, - .ctrlbit = S3C2410_CLKCON_PWMT, - }, { - .name = "uart", - .devname = "s3c2410-uart.0", - .parent = &clk_p, - .enable = s3c2410_clkcon_enable, - .ctrlbit = S3C2410_CLKCON_UART0, - }, { - .name = "uart", - .devname = "s3c2410-uart.1", - .parent = &clk_p, - .enable = s3c2410_clkcon_enable, - .ctrlbit = S3C2410_CLKCON_UART1, - }, { - .name = "uart", - .devname = "s3c2410-uart.2", - .parent = &clk_p, - .enable = s3c2410_clkcon_enable, - .ctrlbit = S3C2410_CLKCON_UART2, - }, { - .name = "rtc", - .parent = &clk_p, - .enable = s3c2410_clkcon_enable, - .ctrlbit = S3C2410_CLKCON_RTC, - }, { - .name = "watchdog", - .parent = &clk_p, - .ctrlbit = 0, - }, { - .name = "usb-bus-host", - .parent = &clk_usb_bus, - }, { - .name = "usb-bus-gadget", - .parent = &clk_usb_bus, - }, +static struct clk clk_lcd = { + .name = "lcd", + .parent = &clk_h, + .enable = s3c2410_clkcon_enable, + .ctrlbit = S3C2410_CLKCON_LCDC, +}; + +static struct clk clk_gpio = { + .name = "gpio", + .parent = &clk_p, + .enable = s3c2410_clkcon_enable, + .ctrlbit = S3C2410_CLKCON_GPIO, +}; + +static struct clk clk_usb_host = { + .name = "usb-host", + .parent = &clk_h, + .enable = s3c2410_clkcon_enable, + .ctrlbit = S3C2410_CLKCON_USBH, +}; + +static struct clk clk_usb_device = { + .name = "usb-device", + .parent = &clk_h, + .enable = s3c2410_clkcon_enable, + .ctrlbit = S3C2410_CLKCON_USBD, +}; + +static struct clk clk_timers = { + .name = "timers", + .parent = &clk_p, + .enable = s3c2410_clkcon_enable, + .ctrlbit = S3C2410_CLKCON_PWMT, +}; + +struct clk s3c24xx_clk_uart0 = { + .name = "uart", + .devname = "s3c2410-uart.0", + .parent = &clk_p, + .enable = s3c2410_clkcon_enable, + .ctrlbit = S3C2410_CLKCON_UART0, +}; + +struct clk s3c24xx_clk_uart1 = { + .name = "uart", + .devname = "s3c2410-uart.1", + .parent = &clk_p, + .enable = s3c2410_clkcon_enable, + .ctrlbit = S3C2410_CLKCON_UART1, +}; + +struct clk s3c24xx_clk_uart2 = { + .name = "uart", + .devname = "s3c2410-uart.2", + .parent = &clk_p, + .enable = s3c2410_clkcon_enable, + .ctrlbit = S3C2410_CLKCON_UART2, +}; + +static struct clk clk_rtc = { + .name = "rtc", + .parent = &clk_p, + .enable = s3c2410_clkcon_enable, + .ctrlbit = S3C2410_CLKCON_RTC, +}; + +static struct clk clk_watchdog = { + .name = "watchdog", + .parent = &clk_p, + .ctrlbit = 0, +}; + +static struct clk clk_usb_bus_host = { + .name = "usb-bus-host", + .parent = &clk_usb_bus, +}; + +static struct clk clk_usb_bus_gadget = { + .name = "usb-bus-gadget", + .parent = &clk_usb_bus, +}; + +static struct clk *init_clocks[] = { + &clk_lcd, + &clk_gpio, + &clk_usb_host, + &clk_usb_device, + &clk_timers, + &s3c24xx_clk_uart0, + &s3c24xx_clk_uart1, + &s3c24xx_clk_uart2, + &clk_rtc, + &clk_watchdog, + &clk_usb_bus_host, + &clk_usb_bus_gadget, }; /* s3c2410_baseclk_add() @@ -195,7 +230,6 @@ int __init s3c2410_baseclk_add(void) { unsigned long clkslow = __raw_readl(S3C2410_CLKSLOW); unsigned long clkcon = __raw_readl(S3C2410_CLKCON); - struct clk *clkp; struct clk *xtal; int ret; int ptr; @@ -207,8 +241,9 @@ int __init s3c2410_baseclk_add(void) /* register clocks from clock array */ - clkp = init_clocks; - for (ptr = 0; ptr < ARRAY_SIZE(init_clocks); ptr++, clkp++) { + for (ptr = 0; ptr < ARRAY_SIZE(init_clocks); ptr++) { + struct clk *clkp = init_clocks[ptr]; + /* ensure that we note the clock state */ clkp->usage = clkcon & clkp->ctrlbit ? 1 : 0; diff --git a/arch/arm/mach-s3c24xx/clock-s3c2440.c b/arch/arm/mach-s3c24xx/clock-s3c2440.c index 1069b568082..aaf006d1d6d 100644 --- a/arch/arm/mach-s3c24xx/clock-s3c2440.c +++ b/arch/arm/mach-s3c24xx/clock-s3c2440.c @@ -166,6 +166,9 @@ static struct clk_lookup s3c2440_clk_lookup[] = { CLKDEV_INIT(NULL, "clk_uart_baud1", &s3c24xx_uclk), CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_p), CLKDEV_INIT(NULL, "clk_uart_baud3", &s3c2440_clk_fclk_n), + CLKDEV_INIT("s3c2440-uart.0", "uart", &s3c24xx_clk_uart0), + CLKDEV_INIT("s3c2440-uart.1", "uart", &s3c24xx_clk_uart1), + CLKDEV_INIT("s3c2440-uart.2", "uart", &s3c24xx_clk_uart2), CLKDEV_INIT("s3c2440-camif", "camera", &s3c2440_clk_cam_upll), }; diff --git a/arch/arm/plat-samsung/include/plat/clock.h b/arch/arm/plat-samsung/include/plat/clock.h index a62753dc15b..df45d6edc98 100644 --- a/arch/arm/plat-samsung/include/plat/clock.h +++ b/arch/arm/plat-samsung/include/plat/clock.h @@ -83,6 +83,11 @@ extern struct clk clk_ext; extern struct clksrc_clk clk_epllref; extern struct clksrc_clk clk_esysclk; +/* S3C24XX UART clocks */ +extern struct clk s3c24xx_clk_uart0; +extern struct clk s3c24xx_clk_uart1; +extern struct clk s3c24xx_clk_uart2; + /* S3C64XX specific clocks */ extern struct clk clk_h2; extern struct clk clk_27m; -- cgit v1.2.3 From ad92c615975a57c4b206c5c99f77a0bf22b373c4 Mon Sep 17 00:00:00 2001 From: Denis Kirjanov Date: Tue, 23 Jul 2013 15:28:03 +0400 Subject: powerpc/pseries: Fix a typo in pSeries_lpar_hpte_insert() Commit 801eb73f45371accc78ca9d6d22d647eeb722c11 introduced a bug while checking PTE flags. We have to drop the _PAGE_COHERENT flag when __PAGE_NO_CACHE is set and the cache update policy is not write-through (i.e. _PAGE_WRITETHRU is not set) Signed-off-by: Denis Kirjanov Reviewed-by: Aneesh Kumar K.V CC: Michael Ellerman Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/pseries/lpar.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c index 02d6e21619b..8bad880bd17 100644 --- a/arch/powerpc/platforms/pseries/lpar.c +++ b/arch/powerpc/platforms/pseries/lpar.c @@ -146,7 +146,7 @@ static long pSeries_lpar_hpte_insert(unsigned long hpte_group, flags = 0; /* Make pHyp happy */ - if ((rflags & _PAGE_NO_CACHE) & !(rflags & _PAGE_WRITETHRU)) + if ((rflags & _PAGE_NO_CACHE) && !(rflags & _PAGE_WRITETHRU)) hpte_r &= ~_PAGE_COHERENT; if (firmware_has_feature(FW_FEATURE_XCMO) && !(hpte_r & HPTE_R_N)) flags |= H_COALESCE_CAND; -- cgit v1.2.3 From 83383b73ad5fbf52ea4b77aed900a927875f2529 Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Wed, 3 Jul 2013 13:50:03 +0530 Subject: powerpc/mm: Fix fallthrough bug in hpte_decode We should not fallthrough different case statements in hpte_decode. Add break statement to break out of the switch. The regression is introduced by dcda287a9b26309ae43a091d0ecde16f8f61b4c0 "powerpc/mm: Simplify hpte_decode" Reported-by: Paul Mackerras Signed-off-by: Aneesh Kumar K.V Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/mm/hash_native_64.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c index 3f0c30ae479..0530ff78c02 100644 --- a/arch/powerpc/mm/hash_native_64.c +++ b/arch/powerpc/mm/hash_native_64.c @@ -554,6 +554,7 @@ static void hpte_decode(struct hash_pte *hpte, unsigned long slot, seg_off |= vpi << shift; } *vpn = vsid << (SID_SHIFT - VPN_SHIFT) | seg_off >> VPN_SHIFT; + break; case MMU_SEGSIZE_1T: /* We only have 40 - 23 bits of seg_off in avpn */ seg_off = (avpn & 0x1ffff) << 23; @@ -563,6 +564,7 @@ static void hpte_decode(struct hash_pte *hpte, unsigned long slot, seg_off |= vpi << shift; } *vpn = vsid << (SID_SHIFT_1T - VPN_SHIFT) | seg_off >> VPN_SHIFT; + break; default: *vpn = size = 0; } -- cgit v1.2.3 From de640959b63ad437c21f2a217f25332c4ea863cb Mon Sep 17 00:00:00 2001 From: "Aneesh Kumar K.V" Date: Thu, 4 Jul 2013 10:34:45 +0530 Subject: powerpc/mm: Use the correct SLB(LLP) encoding in tlbie instruction The sllp value is stored in mmu_psize_defs in such a way that we can easily OR the value to get the operand for slbmte instruction. ie, the L and LP bits are not contiguous. Decode the bits and use them correctly in tlbie. regression is introduced by 1f6aaaccb1b3af8613fe45781c1aefee2ae8c6b3 "powerpc: Update tlbie/tlbiel as per ISA doc" Reported-by: Paul Mackerras Signed-off-by: Aneesh Kumar K.V Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/mm/hash_native_64.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c index 0530ff78c02..c33d939120c 100644 --- a/arch/powerpc/mm/hash_native_64.c +++ b/arch/powerpc/mm/hash_native_64.c @@ -43,6 +43,7 @@ static inline void __tlbie(unsigned long vpn, int psize, int apsize, int ssize) { unsigned long va; unsigned int penc; + unsigned long sllp; /* * We need 14 to 65 bits of va for a tlibe of 4K page @@ -64,7 +65,9 @@ static inline void __tlbie(unsigned long vpn, int psize, int apsize, int ssize) /* clear out bits after (52) [0....52.....63] */ va &= ~((1ul << (64 - 52)) - 1); va |= ssize << 8; - va |= mmu_psize_defs[apsize].sllp << 6; + sllp = ((mmu_psize_defs[apsize].sllp & SLB_VSID_L) >> 6) | + ((mmu_psize_defs[apsize].sllp & SLB_VSID_LP) >> 4); + va |= sllp << 5; asm volatile(ASM_FTR_IFCLR("tlbie %0,0", PPC_TLBIE(%1,%0), %2) : : "r" (va), "r"(0), "i" (CPU_FTR_ARCH_206) : "memory"); @@ -98,6 +101,7 @@ static inline void __tlbiel(unsigned long vpn, int psize, int apsize, int ssize) { unsigned long va; unsigned int penc; + unsigned long sllp; /* VPN_SHIFT can be atmost 12 */ va = vpn << VPN_SHIFT; @@ -113,7 +117,9 @@ static inline void __tlbiel(unsigned long vpn, int psize, int apsize, int ssize) /* clear out bits after(52) [0....52.....63] */ va &= ~((1ul << (64 - 52)) - 1); va |= ssize << 8; - va |= mmu_psize_defs[apsize].sllp << 6; + sllp = ((mmu_psize_defs[apsize].sllp & SLB_VSID_L) >> 6) | + ((mmu_psize_defs[apsize].sllp & SLB_VSID_LP) >> 4); + va |= sllp << 5; asm volatile(".long 0x7c000224 | (%0 << 11) | (0 << 21)" : : "r"(va) : "memory"); break; -- cgit v1.2.3 From 679750054ae8129a536734bccf526ff6da35376a Mon Sep 17 00:00:00 2001 From: Bjorn Helgaas Date: Tue, 2 Jul 2013 12:20:03 -0600 Subject: powerpc/powernv: Mark pnv_pci_init_ioda2_phb() as __init Mark pnv_pci_init_ioda2_phb() as __init. It is called only from an init function (pnv_pci_init()), and it calls an init function (pnv_pci_init_ioda_phb()): pnv_pci_init # init pnv_pci_init_ioda2_phb # non-init pnv_pci_init_ioda_phb # init This should fix a section mismatch warning. Signed-off-by: Bjorn Helgaas Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/powernv/pci-ioda.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 49b57b9f835..d8140b125e6 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -1266,7 +1266,7 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np, opal_pci_set_pe(phb_id, 0, 0, 7, 1, 1 , OPAL_MAP_PE); } -void pnv_pci_init_ioda2_phb(struct device_node *np) +void __init pnv_pci_init_ioda2_phb(struct device_node *np) { pnv_pci_init_ioda_phb(np, 0, PNV_PHB_IODA2); } -- cgit v1.2.3 From 7689bdcab1dca061c4c91f0e1703cef1b7b67e71 Mon Sep 17 00:00:00 2001 From: Anshuman Khandual Date: Mon, 10 Jun 2013 11:23:28 +0530 Subject: powerpc/perf: Ignore separate BHRB privilege state filter request Completely ignore BHRB privilege state filter request as we are already configuring that with privilege state filtering attribute for the accompanying PMU event. This would help achieve cleaner user space interaction for BHRB. This patch fixes a situation like this Before patch:- ------------ ./perf record -j any -e branch-misses:k ls Error: The sys_perf_event_open() syscall returned with 95 (Operation not supported) for event (branch-misses:k). /bin/dmesg may provide additional information. No CONFIG_PERF_EVENTS=y kernel support configured? Here 'perf record' actually copies over ':k' filter request into BHRB privilege state filter config and our previous check in kernel would fail that. After patch:- ------------- ./perf record -j any -e branch-misses:k ls perf perf.data perf.data.old test-mmap-ring [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.002 MB perf.data (~102 samples)] Signed-off-by: Anshuman Khandual Acked-by: Michael Neuling Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/perf/power8-pmu.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c index 09def196f5c..7466374d278 100644 --- a/arch/powerpc/perf/power8-pmu.c +++ b/arch/powerpc/perf/power8-pmu.c @@ -561,18 +561,13 @@ static int power8_generic_events[] = { static u64 power8_bhrb_filter_map(u64 branch_sample_type) { u64 pmu_bhrb_filter = 0; - u64 br_privilege = branch_sample_type & ONLY_PLM; - /* BHRB and regular PMU events share the same prvillege state + /* BHRB and regular PMU events share the same privilege state * filter configuration. BHRB is always recorded along with a - * regular PMU event. So privilege state filter criteria for BHRB - * and the companion PMU events has to be the same. As a default - * "perf record" tool sets all privillege bits ON when no filter - * criteria is provided in the command line. So as along as all - * privillege bits are ON or they are OFF, we are good to go. + * regular PMU event. As the privilege state filter is handled + * in the basic PMC configuration of the accompanying regular + * PMU event, we ignore any separate BHRB specific request. */ - if ((br_privilege != 7) && (br_privilege != 0)) - return -1; /* No branch filter requested */ if (branch_sample_type & PERF_SAMPLE_BRANCH_ANY) -- cgit v1.2.3 From ff3d79dc12c2ed38483f6c1e0f26fde430f27c9d Mon Sep 17 00:00:00 2001 From: Anshuman Khandual Date: Mon, 10 Jun 2013 11:23:29 +0530 Subject: powerpc/perf: BHRB filter configuration should follow the task When the task moves around the system, the corresponding cpuhw per cpu strcuture should be popullated with the BHRB filter request value so that PMU could be configured appropriately with that during the next call into power_pmu_enable(). Signed-off-by: Anshuman Khandual Acked-by: Michael Neuling Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/perf/core-book3s.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c index a3985aee77f..24a45f91c65 100644 --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -1252,8 +1252,11 @@ nocheck: ret = 0; out: - if (has_branch_stack(event)) + if (has_branch_stack(event)) { power_pmu_bhrb_enable(event); + cpuhw->bhrb_filter = ppmu->bhrb_filter_map( + event->attr.branch_sample_type); + } perf_pmu_enable(event->pmu); local_irq_restore(flags); -- cgit v1.2.3 From 89693016e372983d720c186c0d00b29414b58804 Mon Sep 17 00:00:00 2001 From: Amit Daniel Kachhap Date: Wed, 24 Jul 2013 14:06:13 +0900 Subject: ARM: SAMSUNG: Add SAMSUNG_PM config option to select pm This patch enables the selection of samsung pm related stuffs when SAMSUNG_PM config is enabled and not just when generic PM config is enabled. Power management for s3c64XX and s3c24XX is enabled by default and for other platform depends on S5P_PM. This patch also fixes the following compilation error's when compiling a platform like exynos5440 which does not select pm stuffs. arch/arm/mach-exynos/built-in.o: In function '__virt_to_phys': linux/arch/arm/include/asm/memory.h:175: undefined reference to 's3c_cpu_resume' linux/arch/arm/include/asm/memory.h:175: undefined reference to 's3c_cpu_resume' linux/arch/arm/include/asm/memory.h:175: undefined reference to 's3c_cpu_resume' linux/arch/arm/include/asm/memory.h:175: undefined reference to 's3c_cpu_resume' arch/arm/mach-exynos/built-in.o: In function 'exynos5_init_irq': linux/arch/arm/mach-exynos/common.c:492: undefined reference to 's3c_irq_wake' linux/arch/arm/mach-exynos/common.c:492: undefined reference to 's3c_irq_wake' arch/arm/mach-exynos/built-in.o: In function 'exynos4_init_irq': linux/arch/arm/mach-exynos/common.c:476: undefined reference to 's3c_irq_wake' linux/arch/arm/mach-exynos/common.c:476: undefined reference to 's3c_irq_wake' arch/arm/plat-samsung/built-in.o: In function 's3c_irqext_wake': linux/arch/arm/plat-samsung/pm.c:144: undefined reference to 's3c_irqwake_eintallow' linux/arch/arm/plat-samsung/pm.c:144: undefined reference to 's3c_irqwake_eintallow' arch/arm/plat-samsung/built-in.o: In function 's3c_pm_enter': linux/arch/arm/plat-samsung/pm.c:263: undefined reference to 's3c_irqwake_intallow' linux/arch/arm/plat-samsung/pm.c:263: undefined reference to 's3c_irqwake_intallow' linux/arch/arm/plat-samsung/pm.c:264: undefined reference to 's3c_irqwake_eintallow' linux/arch/arm/plat-samsung/pm.c:264: undefined reference to 's3c_irqwake_eintallow' linux/arch/arm/plat-samsung/pm.c:275: undefined reference to 's3c_pm_save_core' linux/arch/arm/plat-samsung/pm.c:279: undefined reference to 's3c_pm_configure_extint' linux/arch/arm/plat-samsung/pm.c:310: undefined reference to 's3c_pm_restore_core' make: *** [vmlinux] Error 1 Signed-off-by: Amit Daniel Kachhap Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/Makefile | 2 +- arch/arm/mach-exynos/common.h | 1 - arch/arm/mach-exynos/cpuidle.c | 1 + arch/arm/plat-samsung/Kconfig | 7 +++++++ arch/arm/plat-samsung/Makefile | 2 +- arch/arm/plat-samsung/include/plat/pm.h | 8 ++++---- 6 files changed, 14 insertions(+), 7 deletions(-) diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile index e970a7a4e27..53696154aea 100644 --- a/arch/arm/mach-exynos/Makefile +++ b/arch/arm/mach-exynos/Makefile @@ -14,7 +14,7 @@ obj- := obj-$(CONFIG_ARCH_EXYNOS) += common.o -obj-$(CONFIG_PM) += pm.o +obj-$(CONFIG_S5P_PM) += pm.o obj-$(CONFIG_PM_GENERIC_DOMAINS) += pm_domains.o obj-$(CONFIG_CPU_IDLE) += cpuidle.o diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h index 3e156bcddcb..972490fc09d 100644 --- a/arch/arm/mach-exynos/common.h +++ b/arch/arm/mach-exynos/common.h @@ -97,6 +97,5 @@ struct exynos_pmu_conf { }; extern void exynos_sys_powerdown_conf(enum sys_powerdown mode); -extern void s3c_cpu_resume(void); #endif /* __ARCH_ARM_MACH_EXYNOS_COMMON_H */ diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c index 17a18ff3d71..225ee8431c7 100644 --- a/arch/arm/mach-exynos/cpuidle.c +++ b/arch/arm/mach-exynos/cpuidle.c @@ -25,6 +25,7 @@ #include #include +#include #include "common.h" diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig index 3dc5cbea86c..a5b5ff6e68d 100644 --- a/arch/arm/plat-samsung/Kconfig +++ b/arch/arm/plat-samsung/Kconfig @@ -29,6 +29,13 @@ config PLAT_S5P help Base platform code for Samsung's S5P series SoC. +config SAMSUNG_PM + bool + depends on PM && (PLAT_S3C24XX || ARCH_S3C64XX || ARCH_S5P64X0 || S5P_PM) + default y + help + Base platform power management code for samsung code + if PLAT_SAMSUNG # boot configurations diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile index 98d07d8fc7a..199bbe304d0 100644 --- a/arch/arm/plat-samsung/Makefile +++ b/arch/arm/plat-samsung/Makefile @@ -51,7 +51,7 @@ obj-$(CONFIG_SAMSUNG_DMADEV) += dma-ops.o # PM support -obj-$(CONFIG_PM) += pm.o +obj-$(CONFIG_SAMSUNG_PM) += pm.o obj-$(CONFIG_SAMSUNG_PM_GPIO) += pm-gpio.o obj-$(CONFIG_SAMSUNG_PM_CHECK) += pm-check.o diff --git a/arch/arm/plat-samsung/include/plat/pm.h b/arch/arm/plat-samsung/include/plat/pm.h index 5d47ca35cab..6bc1a8f471e 100644 --- a/arch/arm/plat-samsung/include/plat/pm.h +++ b/arch/arm/plat-samsung/include/plat/pm.h @@ -19,7 +19,7 @@ struct device; -#ifdef CONFIG_PM +#ifdef CONFIG_SAMSUNG_PM extern __init int s3c_pm_init(void); extern __init int s3c64xx_pm_init(void); @@ -58,8 +58,6 @@ extern unsigned char pm_uart_udivslot; /* true to save UART UDIVSLOT */ /* from sleep.S */ -extern void s3c_cpu_resume(void); - extern int s3c2410_cpu_suspend(unsigned long); /* sleep save info */ @@ -106,12 +104,14 @@ extern void s3c_pm_do_save(struct sleep_save *ptr, int count); extern void s3c_pm_do_restore(struct sleep_save *ptr, int count); extern void s3c_pm_do_restore_core(struct sleep_save *ptr, int count); -#ifdef CONFIG_PM +#ifdef CONFIG_SAMSUNG_PM extern int s3c_irq_wake(struct irq_data *data, unsigned int state); extern int s3c_irqext_wake(struct irq_data *data, unsigned int state); +extern void s3c_cpu_resume(void); #else #define s3c_irq_wake NULL #define s3c_irqext_wake NULL +#define s3c_cpu_resume NULL #endif /* PM debug functions */ -- cgit v1.2.3 From e70308ec0e4bff344fcfdf160de40e1150552c5f Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Wed, 24 Jul 2013 17:04:16 +1000 Subject: Revert "crypto: crct10dif - Wrap crc_t10dif function all to use crypto transform framework" This reverts commits 67822649d7305caf3dd50ed46c27b99c94eff996 39761214eefc6b070f29402aa1165f24d789b3f7 0b95a7f85718adcbba36407ef88bba0a7379ed03 31d939625a9a20b1badd2d4e6bf6fd39fa523405 2d31e518a42828df7877bca23a958627d60408bc Unfortunately this change broke boot on some systems that used an initrd which does not include the newly created crct10dif modules. As these modules are required by sd_mod under certain configurations this is a serious problem. Signed-off-by: Herbert Xu --- arch/x86/crypto/Makefile | 2 - arch/x86/crypto/crct10dif-pcl-asm_64.S | 643 -------------------------------- arch/x86/crypto/crct10dif-pclmul_glue.c | 151 -------- crypto/Kconfig | 19 - crypto/Makefile | 1 - crypto/crct10dif.c | 178 --------- crypto/tcrypt.c | 8 - crypto/testmgr.c | 10 - crypto/testmgr.h | 33 -- include/linux/crc-t10dif.h | 4 - lib/Kconfig | 2 - lib/crc-t10dif.c | 73 ++-- 12 files changed, 43 insertions(+), 1081 deletions(-) delete mode 100644 arch/x86/crypto/crct10dif-pcl-asm_64.S delete mode 100644 arch/x86/crypto/crct10dif-pclmul_glue.c delete mode 100644 crypto/crct10dif.c diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile index 7d6ba9db1be..6c63c358a7e 100644 --- a/arch/x86/crypto/Makefile +++ b/arch/x86/crypto/Makefile @@ -27,7 +27,6 @@ obj-$(CONFIG_CRYPTO_SHA1_SSSE3) += sha1-ssse3.o obj-$(CONFIG_CRYPTO_CRC32_PCLMUL) += crc32-pclmul.o obj-$(CONFIG_CRYPTO_SHA256_SSSE3) += sha256-ssse3.o obj-$(CONFIG_CRYPTO_SHA512_SSSE3) += sha512-ssse3.o -obj-$(CONFIG_CRYPTO_CRCT10DIF_PCLMUL) += crct10dif-pclmul.o # These modules require assembler to support AVX. ifeq ($(avx_supported),yes) @@ -82,4 +81,3 @@ crc32c-intel-$(CONFIG_64BIT) += crc32c-pcl-intel-asm_64.o crc32-pclmul-y := crc32-pclmul_asm.o crc32-pclmul_glue.o sha256-ssse3-y := sha256-ssse3-asm.o sha256-avx-asm.o sha256-avx2-asm.o sha256_ssse3_glue.o sha512-ssse3-y := sha512-ssse3-asm.o sha512-avx-asm.o sha512-avx2-asm.o sha512_ssse3_glue.o -crct10dif-pclmul-y := crct10dif-pcl-asm_64.o crct10dif-pclmul_glue.o diff --git a/arch/x86/crypto/crct10dif-pcl-asm_64.S b/arch/x86/crypto/crct10dif-pcl-asm_64.S deleted file mode 100644 index 35e97569d05..00000000000 --- a/arch/x86/crypto/crct10dif-pcl-asm_64.S +++ /dev/null @@ -1,643 +0,0 @@ -######################################################################## -# Implement fast CRC-T10DIF computation with SSE and PCLMULQDQ instructions -# -# Copyright (c) 2013, Intel Corporation -# -# Authors: -# Erdinc Ozturk -# Vinodh Gopal -# James Guilford -# Tim Chen -# -# This software is available to you under a choice of one of two -# licenses. You may choose to be licensed under the terms of the GNU -# General Public License (GPL) Version 2, available from the file -# COPYING in the main directory of this source tree, or the -# OpenIB.org BSD license below: -# -# Redistribution and use in source and binary forms, with or without -# modification, are permitted provided that the following conditions are -# met: -# -# * Redistributions of source code must retain the above copyright -# notice, this list of conditions and the following disclaimer. -# -# * Redistributions in binary form must reproduce the above copyright -# notice, this list of conditions and the following disclaimer in the -# documentation and/or other materials provided with the -# distribution. -# -# * Neither the name of the Intel Corporation nor the names of its -# contributors may be used to endorse or promote products derived from -# this software without specific prior written permission. -# -# -# THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION ""AS IS"" AND ANY -# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR -# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR -# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, -# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, -# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR -# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF -# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING -# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS -# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -######################################################################## -# Function API: -# UINT16 crc_t10dif_pcl( -# UINT16 init_crc, //initial CRC value, 16 bits -# const unsigned char *buf, //buffer pointer to calculate CRC on -# UINT64 len //buffer length in bytes (64-bit data) -# ); -# -# Reference paper titled "Fast CRC Computation for Generic -# Polynomials Using PCLMULQDQ Instruction" -# URL: http://www.intel.com/content/dam/www/public/us/en/documents -# /white-papers/fast-crc-computation-generic-polynomials-pclmulqdq-paper.pdf -# -# - -#include - -.text - -#define arg1 %rdi -#define arg2 %rsi -#define arg3 %rdx - -#define arg1_low32 %edi - -ENTRY(crc_t10dif_pcl) -.align 16 - - # adjust the 16-bit initial_crc value, scale it to 32 bits - shl $16, arg1_low32 - - # Allocate Stack Space - mov %rsp, %rcx - sub $16*2, %rsp - # align stack to 16 byte boundary - and $~(0x10 - 1), %rsp - - # check if smaller than 256 - cmp $256, arg3 - - # for sizes less than 128, we can't fold 64B at a time... - jl _less_than_128 - - - # load the initial crc value - movd arg1_low32, %xmm10 # initial crc - - # crc value does not need to be byte-reflected, but it needs - # to be moved to the high part of the register. - # because data will be byte-reflected and will align with - # initial crc at correct place. - pslldq $12, %xmm10 - - movdqa SHUF_MASK(%rip), %xmm11 - # receive the initial 64B data, xor the initial crc value - movdqu 16*0(arg2), %xmm0 - movdqu 16*1(arg2), %xmm1 - movdqu 16*2(arg2), %xmm2 - movdqu 16*3(arg2), %xmm3 - movdqu 16*4(arg2), %xmm4 - movdqu 16*5(arg2), %xmm5 - movdqu 16*6(arg2), %xmm6 - movdqu 16*7(arg2), %xmm7 - - pshufb %xmm11, %xmm0 - # XOR the initial_crc value - pxor %xmm10, %xmm0 - pshufb %xmm11, %xmm1 - pshufb %xmm11, %xmm2 - pshufb %xmm11, %xmm3 - pshufb %xmm11, %xmm4 - pshufb %xmm11, %xmm5 - pshufb %xmm11, %xmm6 - pshufb %xmm11, %xmm7 - - movdqa rk3(%rip), %xmm10 #xmm10 has rk3 and rk4 - #imm value of pclmulqdq instruction - #will determine which constant to use - - ################################################################# - # we subtract 256 instead of 128 to save one instruction from the loop - sub $256, arg3 - - # at this section of the code, there is 64*x+y (0<=y<64) bytes of - # buffer. The _fold_64_B_loop will fold 64B at a time - # until we have 64+y Bytes of buffer - - - # fold 64B at a time. This section of the code folds 4 xmm - # registers in parallel -_fold_64_B_loop: - - # update the buffer pointer - add $128, arg2 # buf += 64# - - movdqu 16*0(arg2), %xmm9 - movdqu 16*1(arg2), %xmm12 - pshufb %xmm11, %xmm9 - pshufb %xmm11, %xmm12 - movdqa %xmm0, %xmm8 - movdqa %xmm1, %xmm13 - pclmulqdq $0x0 , %xmm10, %xmm0 - pclmulqdq $0x11, %xmm10, %xmm8 - pclmulqdq $0x0 , %xmm10, %xmm1 - pclmulqdq $0x11, %xmm10, %xmm13 - pxor %xmm9 , %xmm0 - xorps %xmm8 , %xmm0 - pxor %xmm12, %xmm1 - xorps %xmm13, %xmm1 - - movdqu 16*2(arg2), %xmm9 - movdqu 16*3(arg2), %xmm12 - pshufb %xmm11, %xmm9 - pshufb %xmm11, %xmm12 - movdqa %xmm2, %xmm8 - movdqa %xmm3, %xmm13 - pclmulqdq $0x0, %xmm10, %xmm2 - pclmulqdq $0x11, %xmm10, %xmm8 - pclmulqdq $0x0, %xmm10, %xmm3 - pclmulqdq $0x11, %xmm10, %xmm13 - pxor %xmm9 , %xmm2 - xorps %xmm8 , %xmm2 - pxor %xmm12, %xmm3 - xorps %xmm13, %xmm3 - - movdqu 16*4(arg2), %xmm9 - movdqu 16*5(arg2), %xmm12 - pshufb %xmm11, %xmm9 - pshufb %xmm11, %xmm12 - movdqa %xmm4, %xmm8 - movdqa %xmm5, %xmm13 - pclmulqdq $0x0, %xmm10, %xmm4 - pclmulqdq $0x11, %xmm10, %xmm8 - pclmulqdq $0x0, %xmm10, %xmm5 - pclmulqdq $0x11, %xmm10, %xmm13 - pxor %xmm9 , %xmm4 - xorps %xmm8 , %xmm4 - pxor %xmm12, %xmm5 - xorps %xmm13, %xmm5 - - movdqu 16*6(arg2), %xmm9 - movdqu 16*7(arg2), %xmm12 - pshufb %xmm11, %xmm9 - pshufb %xmm11, %xmm12 - movdqa %xmm6 , %xmm8 - movdqa %xmm7 , %xmm13 - pclmulqdq $0x0 , %xmm10, %xmm6 - pclmulqdq $0x11, %xmm10, %xmm8 - pclmulqdq $0x0 , %xmm10, %xmm7 - pclmulqdq $0x11, %xmm10, %xmm13 - pxor %xmm9 , %xmm6 - xorps %xmm8 , %xmm6 - pxor %xmm12, %xmm7 - xorps %xmm13, %xmm7 - - sub $128, arg3 - - # check if there is another 64B in the buffer to be able to fold - jge _fold_64_B_loop - ################################################################## - - - add $128, arg2 - # at this point, the buffer pointer is pointing at the last y Bytes - # of the buffer the 64B of folded data is in 4 of the xmm - # registers: xmm0, xmm1, xmm2, xmm3 - - - # fold the 8 xmm registers to 1 xmm register with different constants - - movdqa rk9(%rip), %xmm10 - movdqa %xmm0, %xmm8 - pclmulqdq $0x11, %xmm10, %xmm0 - pclmulqdq $0x0 , %xmm10, %xmm8 - pxor %xmm8, %xmm7 - xorps %xmm0, %xmm7 - - movdqa rk11(%rip), %xmm10 - movdqa %xmm1, %xmm8 - pclmulqdq $0x11, %xmm10, %xmm1 - pclmulqdq $0x0 , %xmm10, %xmm8 - pxor %xmm8, %xmm7 - xorps %xmm1, %xmm7 - - movdqa rk13(%rip), %xmm10 - movdqa %xmm2, %xmm8 - pclmulqdq $0x11, %xmm10, %xmm2 - pclmulqdq $0x0 , %xmm10, %xmm8 - pxor %xmm8, %xmm7 - pxor %xmm2, %xmm7 - - movdqa rk15(%rip), %xmm10 - movdqa %xmm3, %xmm8 - pclmulqdq $0x11, %xmm10, %xmm3 - pclmulqdq $0x0 , %xmm10, %xmm8 - pxor %xmm8, %xmm7 - xorps %xmm3, %xmm7 - - movdqa rk17(%rip), %xmm10 - movdqa %xmm4, %xmm8 - pclmulqdq $0x11, %xmm10, %xmm4 - pclmulqdq $0x0 , %xmm10, %xmm8 - pxor %xmm8, %xmm7 - pxor %xmm4, %xmm7 - - movdqa rk19(%rip), %xmm10 - movdqa %xmm5, %xmm8 - pclmulqdq $0x11, %xmm10, %xmm5 - pclmulqdq $0x0 , %xmm10, %xmm8 - pxor %xmm8, %xmm7 - xorps %xmm5, %xmm7 - - movdqa rk1(%rip), %xmm10 #xmm10 has rk1 and rk2 - #imm value of pclmulqdq instruction - #will determine which constant to use - movdqa %xmm6, %xmm8 - pclmulqdq $0x11, %xmm10, %xmm6 - pclmulqdq $0x0 , %xmm10, %xmm8 - pxor %xmm8, %xmm7 - pxor %xmm6, %xmm7 - - - # instead of 64, we add 48 to the loop counter to save 1 instruction - # from the loop instead of a cmp instruction, we use the negative - # flag with the jl instruction - add $128-16, arg3 - jl _final_reduction_for_128 - - # now we have 16+y bytes left to reduce. 16 Bytes is in register xmm7 - # and the rest is in memory. We can fold 16 bytes at a time if y>=16 - # continue folding 16B at a time - -_16B_reduction_loop: - movdqa %xmm7, %xmm8 - pclmulqdq $0x11, %xmm10, %xmm7 - pclmulqdq $0x0 , %xmm10, %xmm8 - pxor %xmm8, %xmm7 - movdqu (arg2), %xmm0 - pshufb %xmm11, %xmm0 - pxor %xmm0 , %xmm7 - add $16, arg2 - sub $16, arg3 - # instead of a cmp instruction, we utilize the flags with the - # jge instruction equivalent of: cmp arg3, 16-16 - # check if there is any more 16B in the buffer to be able to fold - jge _16B_reduction_loop - - #now we have 16+z bytes left to reduce, where 0<= z < 16. - #first, we reduce the data in the xmm7 register - - -_final_reduction_for_128: - # check if any more data to fold. If not, compute the CRC of - # the final 128 bits - add $16, arg3 - je _128_done - - # here we are getting data that is less than 16 bytes. - # since we know that there was data before the pointer, we can - # offset the input pointer before the actual point, to receive - # exactly 16 bytes. after that the registers need to be adjusted. -_get_last_two_xmms: - movdqa %xmm7, %xmm2 - - movdqu -16(arg2, arg3), %xmm1 - pshufb %xmm11, %xmm1 - - # get rid of the extra data that was loaded before - # load the shift constant - lea pshufb_shf_table+16(%rip), %rax - sub arg3, %rax - movdqu (%rax), %xmm0 - - # shift xmm2 to the left by arg3 bytes - pshufb %xmm0, %xmm2 - - # shift xmm7 to the right by 16-arg3 bytes - pxor mask1(%rip), %xmm0 - pshufb %xmm0, %xmm7 - pblendvb %xmm2, %xmm1 #xmm0 is implicit - - # fold 16 Bytes - movdqa %xmm1, %xmm2 - movdqa %xmm7, %xmm8 - pclmulqdq $0x11, %xmm10, %xmm7 - pclmulqdq $0x0 , %xmm10, %xmm8 - pxor %xmm8, %xmm7 - pxor %xmm2, %xmm7 - -_128_done: - # compute crc of a 128-bit value - movdqa rk5(%rip), %xmm10 # rk5 and rk6 in xmm10 - movdqa %xmm7, %xmm0 - - #64b fold - pclmulqdq $0x1, %xmm10, %xmm7 - pslldq $8 , %xmm0 - pxor %xmm0, %xmm7 - - #32b fold - movdqa %xmm7, %xmm0 - - pand mask2(%rip), %xmm0 - - psrldq $12, %xmm7 - pclmulqdq $0x10, %xmm10, %xmm7 - pxor %xmm0, %xmm7 - - #barrett reduction -_barrett: - movdqa rk7(%rip), %xmm10 # rk7 and rk8 in xmm10 - movdqa %xmm7, %xmm0 - pclmulqdq $0x01, %xmm10, %xmm7 - pslldq $4, %xmm7 - pclmulqdq $0x11, %xmm10, %xmm7 - - pslldq $4, %xmm7 - pxor %xmm0, %xmm7 - pextrd $1, %xmm7, %eax - -_cleanup: - # scale the result back to 16 bits - shr $16, %eax - mov %rcx, %rsp - ret - -######################################################################## - -.align 16 -_less_than_128: - - # check if there is enough buffer to be able to fold 16B at a time - cmp $32, arg3 - jl _less_than_32 - movdqa SHUF_MASK(%rip), %xmm11 - - # now if there is, load the constants - movdqa rk1(%rip), %xmm10 # rk1 and rk2 in xmm10 - - movd arg1_low32, %xmm0 # get the initial crc value - pslldq $12, %xmm0 # align it to its correct place - movdqu (arg2), %xmm7 # load the plaintext - pshufb %xmm11, %xmm7 # byte-reflect the plaintext - pxor %xmm0, %xmm7 - - - # update the buffer pointer - add $16, arg2 - - # update the counter. subtract 32 instead of 16 to save one - # instruction from the loop - sub $32, arg3 - - jmp _16B_reduction_loop - - -.align 16 -_less_than_32: - # mov initial crc to the return value. this is necessary for - # zero-length buffers. - mov arg1_low32, %eax - test arg3, arg3 - je _cleanup - - movdqa SHUF_MASK(%rip), %xmm11 - - movd arg1_low32, %xmm0 # get the initial crc value - pslldq $12, %xmm0 # align it to its correct place - - cmp $16, arg3 - je _exact_16_left - jl _less_than_16_left - - movdqu (arg2), %xmm7 # load the plaintext - pshufb %xmm11, %xmm7 # byte-reflect the plaintext - pxor %xmm0 , %xmm7 # xor the initial crc value - add $16, arg2 - sub $16, arg3 - movdqa rk1(%rip), %xmm10 # rk1 and rk2 in xmm10 - jmp _get_last_two_xmms - - -.align 16 -_less_than_16_left: - # use stack space to load data less than 16 bytes, zero-out - # the 16B in memory first. - - pxor %xmm1, %xmm1 - mov %rsp, %r11 - movdqa %xmm1, (%r11) - - cmp $4, arg3 - jl _only_less_than_4 - - # backup the counter value - mov arg3, %r9 - cmp $8, arg3 - jl _less_than_8_left - - # load 8 Bytes - mov (arg2), %rax - mov %rax, (%r11) - add $8, %r11 - sub $8, arg3 - add $8, arg2 -_less_than_8_left: - - cmp $4, arg3 - jl _less_than_4_left - - # load 4 Bytes - mov (arg2), %eax - mov %eax, (%r11) - add $4, %r11 - sub $4, arg3 - add $4, arg2 -_less_than_4_left: - - cmp $2, arg3 - jl _less_than_2_left - - # load 2 Bytes - mov (arg2), %ax - mov %ax, (%r11) - add $2, %r11 - sub $2, arg3 - add $2, arg2 -_less_than_2_left: - cmp $1, arg3 - jl _zero_left - - # load 1 Byte - mov (arg2), %al - mov %al, (%r11) -_zero_left: - movdqa (%rsp), %xmm7 - pshufb %xmm11, %xmm7 - pxor %xmm0 , %xmm7 # xor the initial crc value - - # shl r9, 4 - lea pshufb_shf_table+16(%rip), %rax - sub %r9, %rax - movdqu (%rax), %xmm0 - pxor mask1(%rip), %xmm0 - - pshufb %xmm0, %xmm7 - jmp _128_done - -.align 16 -_exact_16_left: - movdqu (arg2), %xmm7 - pshufb %xmm11, %xmm7 - pxor %xmm0 , %xmm7 # xor the initial crc value - - jmp _128_done - -_only_less_than_4: - cmp $3, arg3 - jl _only_less_than_3 - - # load 3 Bytes - mov (arg2), %al - mov %al, (%r11) - - mov 1(arg2), %al - mov %al, 1(%r11) - - mov 2(arg2), %al - mov %al, 2(%r11) - - movdqa (%rsp), %xmm7 - pshufb %xmm11, %xmm7 - pxor %xmm0 , %xmm7 # xor the initial crc value - - psrldq $5, %xmm7 - - jmp _barrett -_only_less_than_3: - cmp $2, arg3 - jl _only_less_than_2 - - # load 2 Bytes - mov (arg2), %al - mov %al, (%r11) - - mov 1(arg2), %al - mov %al, 1(%r11) - - movdqa (%rsp), %xmm7 - pshufb %xmm11, %xmm7 - pxor %xmm0 , %xmm7 # xor the initial crc value - - psrldq $6, %xmm7 - - jmp _barrett -_only_less_than_2: - - # load 1 Byte - mov (arg2), %al - mov %al, (%r11) - - movdqa (%rsp), %xmm7 - pshufb %xmm11, %xmm7 - pxor %xmm0 , %xmm7 # xor the initial crc value - - psrldq $7, %xmm7 - - jmp _barrett - -ENDPROC(crc_t10dif_pcl) - -.data - -# precomputed constants -# these constants are precomputed from the poly: -# 0x8bb70000 (0x8bb7 scaled to 32 bits) -.align 16 -# Q = 0x18BB70000 -# rk1 = 2^(32*3) mod Q << 32 -# rk2 = 2^(32*5) mod Q << 32 -# rk3 = 2^(32*15) mod Q << 32 -# rk4 = 2^(32*17) mod Q << 32 -# rk5 = 2^(32*3) mod Q << 32 -# rk6 = 2^(32*2) mod Q << 32 -# rk7 = floor(2^64/Q) -# rk8 = Q -rk1: -.quad 0x2d56000000000000 -rk2: -.quad 0x06df000000000000 -rk3: -.quad 0x9d9d000000000000 -rk4: -.quad 0x7cf5000000000000 -rk5: -.quad 0x2d56000000000000 -rk6: -.quad 0x1368000000000000 -rk7: -.quad 0x00000001f65a57f8 -rk8: -.quad 0x000000018bb70000 - -rk9: -.quad 0xceae000000000000 -rk10: -.quad 0xbfd6000000000000 -rk11: -.quad 0x1e16000000000000 -rk12: -.quad 0x713c000000000000 -rk13: -.quad 0xf7f9000000000000 -rk14: -.quad 0x80a6000000000000 -rk15: -.quad 0x044c000000000000 -rk16: -.quad 0xe658000000000000 -rk17: -.quad 0xad18000000000000 -rk18: -.quad 0xa497000000000000 -rk19: -.quad 0x6ee3000000000000 -rk20: -.quad 0xe7b5000000000000 - - - -mask1: -.octa 0x80808080808080808080808080808080 -mask2: -.octa 0x00000000FFFFFFFFFFFFFFFFFFFFFFFF - -SHUF_MASK: -.octa 0x000102030405060708090A0B0C0D0E0F - -pshufb_shf_table: -# use these values for shift constants for the pshufb instruction -# different alignments result in values as shown: -# DDQ 0x008f8e8d8c8b8a898887868584838281 # shl 15 (16-1) / shr1 -# DDQ 0x01008f8e8d8c8b8a8988878685848382 # shl 14 (16-3) / shr2 -# DDQ 0x0201008f8e8d8c8b8a89888786858483 # shl 13 (16-4) / shr3 -# DDQ 0x030201008f8e8d8c8b8a898887868584 # shl 12 (16-4) / shr4 -# DDQ 0x04030201008f8e8d8c8b8a8988878685 # shl 11 (16-5) / shr5 -# DDQ 0x0504030201008f8e8d8c8b8a89888786 # shl 10 (16-6) / shr6 -# DDQ 0x060504030201008f8e8d8c8b8a898887 # shl 9 (16-7) / shr7 -# DDQ 0x07060504030201008f8e8d8c8b8a8988 # shl 8 (16-8) / shr8 -# DDQ 0x0807060504030201008f8e8d8c8b8a89 # shl 7 (16-9) / shr9 -# DDQ 0x090807060504030201008f8e8d8c8b8a # shl 6 (16-10) / shr10 -# DDQ 0x0a090807060504030201008f8e8d8c8b # shl 5 (16-11) / shr11 -# DDQ 0x0b0a090807060504030201008f8e8d8c # shl 4 (16-12) / shr12 -# DDQ 0x0c0b0a090807060504030201008f8e8d # shl 3 (16-13) / shr13 -# DDQ 0x0d0c0b0a090807060504030201008f8e # shl 2 (16-14) / shr14 -# DDQ 0x0e0d0c0b0a090807060504030201008f # shl 1 (16-15) / shr15 -.octa 0x8f8e8d8c8b8a89888786858483828100 -.octa 0x000e0d0c0b0a09080706050403020100 diff --git a/arch/x86/crypto/crct10dif-pclmul_glue.c b/arch/x86/crypto/crct10dif-pclmul_glue.c deleted file mode 100644 index 7845d7fd54c..00000000000 --- a/arch/x86/crypto/crct10dif-pclmul_glue.c +++ /dev/null @@ -1,151 +0,0 @@ -/* - * Cryptographic API. - * - * T10 Data Integrity Field CRC16 Crypto Transform using PCLMULQDQ Instructions - * - * Copyright (C) 2013 Intel Corporation - * Author: Tim Chen - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -asmlinkage __u16 crc_t10dif_pcl(__u16 crc, const unsigned char *buf, - size_t len); - -struct chksum_desc_ctx { - __u16 crc; -}; - -/* - * Steps through buffer one byte at at time, calculates reflected - * crc using table. - */ - -static int chksum_init(struct shash_desc *desc) -{ - struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - - ctx->crc = 0; - - return 0; -} - -static int chksum_update(struct shash_desc *desc, const u8 *data, - unsigned int length) -{ - struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - - if (irq_fpu_usable()) { - kernel_fpu_begin(); - ctx->crc = crc_t10dif_pcl(ctx->crc, data, length); - kernel_fpu_end(); - } else - ctx->crc = crc_t10dif_generic(ctx->crc, data, length); - return 0; -} - -static int chksum_final(struct shash_desc *desc, u8 *out) -{ - struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - - *(__u16 *)out = ctx->crc; - return 0; -} - -static int __chksum_finup(__u16 *crcp, const u8 *data, unsigned int len, - u8 *out) -{ - if (irq_fpu_usable()) { - kernel_fpu_begin(); - *(__u16 *)out = crc_t10dif_pcl(*crcp, data, len); - kernel_fpu_end(); - } else - *(__u16 *)out = crc_t10dif_generic(*crcp, data, len); - return 0; -} - -static int chksum_finup(struct shash_desc *desc, const u8 *data, - unsigned int len, u8 *out) -{ - struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - - return __chksum_finup(&ctx->crc, data, len, out); -} - -static int chksum_digest(struct shash_desc *desc, const u8 *data, - unsigned int length, u8 *out) -{ - struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - - return __chksum_finup(&ctx->crc, data, length, out); -} - -static struct shash_alg alg = { - .digestsize = CRC_T10DIF_DIGEST_SIZE, - .init = chksum_init, - .update = chksum_update, - .final = chksum_final, - .finup = chksum_finup, - .digest = chksum_digest, - .descsize = sizeof(struct chksum_desc_ctx), - .base = { - .cra_name = "crct10dif", - .cra_driver_name = "crct10dif-pclmul", - .cra_priority = 200, - .cra_blocksize = CRC_T10DIF_BLOCK_SIZE, - .cra_module = THIS_MODULE, - } -}; - -static const struct x86_cpu_id crct10dif_cpu_id[] = { - X86_FEATURE_MATCH(X86_FEATURE_PCLMULQDQ), - {} -}; -MODULE_DEVICE_TABLE(x86cpu, crct10dif_cpu_id); - -static int __init crct10dif_intel_mod_init(void) -{ - if (!x86_match_cpu(crct10dif_cpu_id)) - return -ENODEV; - - return crypto_register_shash(&alg); -} - -static void __exit crct10dif_intel_mod_fini(void) -{ - crypto_unregister_shash(&alg); -} - -module_init(crct10dif_intel_mod_init); -module_exit(crct10dif_intel_mod_fini); - -MODULE_AUTHOR("Tim Chen "); -MODULE_DESCRIPTION("T10 DIF CRC calculation accelerated with PCLMULQDQ."); -MODULE_LICENSE("GPL"); - -MODULE_ALIAS("crct10dif"); -MODULE_ALIAS("crct10dif-pclmul"); diff --git a/crypto/Kconfig b/crypto/Kconfig index 904ffe83856..2754f2bf5d9 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -376,25 +376,6 @@ config CRYPTO_CRC32_PCLMUL which will enable any routine to use the CRC-32-IEEE 802.3 checksum and gain better performance as compared with the table implementation. -config CRYPTO_CRCT10DIF - tristate "CRCT10DIF algorithm" - select CRYPTO_HASH - help - CRC T10 Data Integrity Field computation is being cast as - a crypto transform. This allows for faster crc t10 diff - transforms to be used if they are available. - -config CRYPTO_CRCT10DIF_PCLMUL - tristate "CRCT10DIF PCLMULQDQ hardware acceleration" - depends on X86 && 64BIT && CRC_T10DIF - select CRYPTO_HASH - help - For x86_64 processors with SSE4.2 and PCLMULQDQ supported, - CRC T10 DIF PCLMULQDQ computation can be hardware - accelerated PCLMULQDQ instruction. This option will create - 'crct10dif-plcmul' module, which is faster when computing the - crct10dif checksum as compared with the generic table implementation. - config CRYPTO_GHASH tristate "GHASH digest algorithm" select CRYPTO_GF128MUL diff --git a/crypto/Makefile b/crypto/Makefile index 62af87df872..a8e9b0fefbe 100644 --- a/crypto/Makefile +++ b/crypto/Makefile @@ -83,7 +83,6 @@ obj-$(CONFIG_CRYPTO_ZLIB) += zlib.o obj-$(CONFIG_CRYPTO_MICHAEL_MIC) += michael_mic.o obj-$(CONFIG_CRYPTO_CRC32C) += crc32c.o obj-$(CONFIG_CRYPTO_CRC32) += crc32.o -obj-$(CONFIG_CRYPTO_CRCT10DIF) += crct10dif.o obj-$(CONFIG_CRYPTO_AUTHENC) += authenc.o authencesn.o obj-$(CONFIG_CRYPTO_LZO) += lzo.o obj-$(CONFIG_CRYPTO_842) += 842.o diff --git a/crypto/crct10dif.c b/crypto/crct10dif.c deleted file mode 100644 index 92aca96d6b9..00000000000 --- a/crypto/crct10dif.c +++ /dev/null @@ -1,178 +0,0 @@ -/* - * Cryptographic API. - * - * T10 Data Integrity Field CRC16 Crypto Transform - * - * Copyright (c) 2007 Oracle Corporation. All rights reserved. - * Written by Martin K. Petersen - * Copyright (C) 2013 Intel Corporation - * Author: Tim Chen - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND - * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS - * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN - * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. - * - */ - -#include -#include -#include -#include -#include -#include -#include - -struct chksum_desc_ctx { - __u16 crc; -}; - -/* Table generated using the following polynomium: - * x^16 + x^15 + x^11 + x^9 + x^8 + x^7 + x^5 + x^4 + x^2 + x + 1 - * gt: 0x8bb7 - */ -static const __u16 t10_dif_crc_table[256] = { - 0x0000, 0x8BB7, 0x9CD9, 0x176E, 0xB205, 0x39B2, 0x2EDC, 0xA56B, - 0xEFBD, 0x640A, 0x7364, 0xF8D3, 0x5DB8, 0xD60F, 0xC161, 0x4AD6, - 0x54CD, 0xDF7A, 0xC814, 0x43A3, 0xE6C8, 0x6D7F, 0x7A11, 0xF1A6, - 0xBB70, 0x30C7, 0x27A9, 0xAC1E, 0x0975, 0x82C2, 0x95AC, 0x1E1B, - 0xA99A, 0x222D, 0x3543, 0xBEF4, 0x1B9F, 0x9028, 0x8746, 0x0CF1, - 0x4627, 0xCD90, 0xDAFE, 0x5149, 0xF422, 0x7F95, 0x68FB, 0xE34C, - 0xFD57, 0x76E0, 0x618E, 0xEA39, 0x4F52, 0xC4E5, 0xD38B, 0x583C, - 0x12EA, 0x995D, 0x8E33, 0x0584, 0xA0EF, 0x2B58, 0x3C36, 0xB781, - 0xD883, 0x5334, 0x445A, 0xCFED, 0x6A86, 0xE131, 0xF65F, 0x7DE8, - 0x373E, 0xBC89, 0xABE7, 0x2050, 0x853B, 0x0E8C, 0x19E2, 0x9255, - 0x8C4E, 0x07F9, 0x1097, 0x9B20, 0x3E4B, 0xB5FC, 0xA292, 0x2925, - 0x63F3, 0xE844, 0xFF2A, 0x749D, 0xD1F6, 0x5A41, 0x4D2F, 0xC698, - 0x7119, 0xFAAE, 0xEDC0, 0x6677, 0xC31C, 0x48AB, 0x5FC5, 0xD472, - 0x9EA4, 0x1513, 0x027D, 0x89CA, 0x2CA1, 0xA716, 0xB078, 0x3BCF, - 0x25D4, 0xAE63, 0xB90D, 0x32BA, 0x97D1, 0x1C66, 0x0B08, 0x80BF, - 0xCA69, 0x41DE, 0x56B0, 0xDD07, 0x786C, 0xF3DB, 0xE4B5, 0x6F02, - 0x3AB1, 0xB106, 0xA668, 0x2DDF, 0x88B4, 0x0303, 0x146D, 0x9FDA, - 0xD50C, 0x5EBB, 0x49D5, 0xC262, 0x6709, 0xECBE, 0xFBD0, 0x7067, - 0x6E7C, 0xE5CB, 0xF2A5, 0x7912, 0xDC79, 0x57CE, 0x40A0, 0xCB17, - 0x81C1, 0x0A76, 0x1D18, 0x96AF, 0x33C4, 0xB873, 0xAF1D, 0x24AA, - 0x932B, 0x189C, 0x0FF2, 0x8445, 0x212E, 0xAA99, 0xBDF7, 0x3640, - 0x7C96, 0xF721, 0xE04F, 0x6BF8, 0xCE93, 0x4524, 0x524A, 0xD9FD, - 0xC7E6, 0x4C51, 0x5B3F, 0xD088, 0x75E3, 0xFE54, 0xE93A, 0x628D, - 0x285B, 0xA3EC, 0xB482, 0x3F35, 0x9A5E, 0x11E9, 0x0687, 0x8D30, - 0xE232, 0x6985, 0x7EEB, 0xF55C, 0x5037, 0xDB80, 0xCCEE, 0x4759, - 0x0D8F, 0x8638, 0x9156, 0x1AE1, 0xBF8A, 0x343D, 0x2353, 0xA8E4, - 0xB6FF, 0x3D48, 0x2A26, 0xA191, 0x04FA, 0x8F4D, 0x9823, 0x1394, - 0x5942, 0xD2F5, 0xC59B, 0x4E2C, 0xEB47, 0x60F0, 0x779E, 0xFC29, - 0x4BA8, 0xC01F, 0xD771, 0x5CC6, 0xF9AD, 0x721A, 0x6574, 0xEEC3, - 0xA415, 0x2FA2, 0x38CC, 0xB37B, 0x1610, 0x9DA7, 0x8AC9, 0x017E, - 0x1F65, 0x94D2, 0x83BC, 0x080B, 0xAD60, 0x26D7, 0x31B9, 0xBA0E, - 0xF0D8, 0x7B6F, 0x6C01, 0xE7B6, 0x42DD, 0xC96A, 0xDE04, 0x55B3 -}; - -__u16 crc_t10dif_generic(__u16 crc, const unsigned char *buffer, size_t len) -{ - unsigned int i; - - for (i = 0 ; i < len ; i++) - crc = (crc << 8) ^ t10_dif_crc_table[((crc >> 8) ^ buffer[i]) & 0xff]; - - return crc; -} -EXPORT_SYMBOL(crc_t10dif_generic); - -/* - * Steps through buffer one byte at at time, calculates reflected - * crc using table. - */ - -static int chksum_init(struct shash_desc *desc) -{ - struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - - ctx->crc = 0; - - return 0; -} - -static int chksum_update(struct shash_desc *desc, const u8 *data, - unsigned int length) -{ - struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - - ctx->crc = crc_t10dif_generic(ctx->crc, data, length); - return 0; -} - -static int chksum_final(struct shash_desc *desc, u8 *out) -{ - struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - - *(__u16 *)out = ctx->crc; - return 0; -} - -static int __chksum_finup(__u16 *crcp, const u8 *data, unsigned int len, - u8 *out) -{ - *(__u16 *)out = crc_t10dif_generic(*crcp, data, len); - return 0; -} - -static int chksum_finup(struct shash_desc *desc, const u8 *data, - unsigned int len, u8 *out) -{ - struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - - return __chksum_finup(&ctx->crc, data, len, out); -} - -static int chksum_digest(struct shash_desc *desc, const u8 *data, - unsigned int length, u8 *out) -{ - struct chksum_desc_ctx *ctx = shash_desc_ctx(desc); - - return __chksum_finup(&ctx->crc, data, length, out); -} - -static struct shash_alg alg = { - .digestsize = CRC_T10DIF_DIGEST_SIZE, - .init = chksum_init, - .update = chksum_update, - .final = chksum_final, - .finup = chksum_finup, - .digest = chksum_digest, - .descsize = sizeof(struct chksum_desc_ctx), - .base = { - .cra_name = "crct10dif", - .cra_driver_name = "crct10dif-generic", - .cra_priority = 100, - .cra_blocksize = CRC_T10DIF_BLOCK_SIZE, - .cra_module = THIS_MODULE, - } -}; - -static int __init crct10dif_mod_init(void) -{ - int ret; - - ret = crypto_register_shash(&alg); - return ret; -} - -static void __exit crct10dif_mod_fini(void) -{ - crypto_unregister_shash(&alg); -} - -module_init(crct10dif_mod_init); -module_exit(crct10dif_mod_fini); - -MODULE_AUTHOR("Tim Chen "); -MODULE_DESCRIPTION("T10 DIF CRC calculation."); -MODULE_LICENSE("GPL"); diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c index 25a5934f0e5..66d254ce0d1 100644 --- a/crypto/tcrypt.c +++ b/crypto/tcrypt.c @@ -1174,10 +1174,6 @@ static int do_test(int m) ret += tcrypt_test("ghash"); break; - case 47: - ret += tcrypt_test("crct10dif"); - break; - case 100: ret += tcrypt_test("hmac(md5)"); break; @@ -1502,10 +1498,6 @@ static int do_test(int m) test_hash_speed("crc32c", sec, generic_hash_speed_template); if (mode > 300 && mode < 400) break; - case 320: - test_hash_speed("crct10dif", sec, generic_hash_speed_template); - if (mode > 300 && mode < 400) break; - case 399: break; diff --git a/crypto/testmgr.c b/crypto/testmgr.c index 2f00607039e..ecddf921a9d 100644 --- a/crypto/testmgr.c +++ b/crypto/testmgr.c @@ -2045,16 +2045,6 @@ static const struct alg_test_desc alg_test_descs[] = { .count = CRC32C_TEST_VECTORS } } - }, { - .alg = "crct10dif", - .test = alg_test_hash, - .fips_allowed = 1, - .suite = { - .hash = { - .vecs = crct10dif_tv_template, - .count = CRCT10DIF_TEST_VECTORS - } - } }, { .alg = "cryptd(__driver-cbc-aes-aesni)", .test = alg_test_null, diff --git a/crypto/testmgr.h b/crypto/testmgr.h index 7d44aa3d6b4..1e701bc075b 100644 --- a/crypto/testmgr.h +++ b/crypto/testmgr.h @@ -450,39 +450,6 @@ static struct hash_testvec rmd320_tv_template[] = { } }; -#define CRCT10DIF_TEST_VECTORS 3 -static struct hash_testvec crct10dif_tv_template[] = { - { - .plaintext = "abc", - .psize = 3, -#ifdef __LITTLE_ENDIAN - .digest = "\x3b\x44", -#else - .digest = "\x44\x3b", -#endif - }, { - .plaintext = "1234567890123456789012345678901234567890" - "123456789012345678901234567890123456789", - .psize = 79, -#ifdef __LITTLE_ENDIAN - .digest = "\x70\x4b", -#else - .digest = "\x4b\x70", -#endif - }, { - .plaintext = - "abcddddddddddddddddddddddddddddddddddddddddddddddddddddd", - .psize = 56, -#ifdef __LITTLE_ENDIAN - .digest = "\xe3\x9c", -#else - .digest = "\x9c\xe3", -#endif - .np = 2, - .tap = { 28, 28 } - } -}; - /* * SHA1 test vectors from from FIPS PUB 180-1 * Long vector from CAVS 5.0 diff --git a/include/linux/crc-t10dif.h b/include/linux/crc-t10dif.h index b3cb71f0d3b..a9c96d865ee 100644 --- a/include/linux/crc-t10dif.h +++ b/include/linux/crc-t10dif.h @@ -3,10 +3,6 @@ #include -#define CRC_T10DIF_DIGEST_SIZE 2 -#define CRC_T10DIF_BLOCK_SIZE 1 - -__u16 crc_t10dif_generic(__u16 crc, const unsigned char *buffer, size_t len); __u16 crc_t10dif(unsigned char const *, size_t); #endif diff --git a/lib/Kconfig b/lib/Kconfig index 339d5a4292f..fe01d418b09 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -63,8 +63,6 @@ config CRC16 config CRC_T10DIF tristate "CRC calculation for the T10 Data Integrity Field" - select CRYPTO - select CRYPTO_CRCT10DIF help This option is only needed if a module that's not in the kernel tree needs to calculate CRC checks for use with the diff --git a/lib/crc-t10dif.c b/lib/crc-t10dif.c index fe3428c07b4..fbbd66ed86c 100644 --- a/lib/crc-t10dif.c +++ b/lib/crc-t10dif.c @@ -11,44 +11,57 @@ #include #include #include -#include -#include -#include -static struct crypto_shash *crct10dif_tfm; +/* Table generated using the following polynomium: + * x^16 + x^15 + x^11 + x^9 + x^8 + x^7 + x^5 + x^4 + x^2 + x + 1 + * gt: 0x8bb7 + */ +static const __u16 t10_dif_crc_table[256] = { + 0x0000, 0x8BB7, 0x9CD9, 0x176E, 0xB205, 0x39B2, 0x2EDC, 0xA56B, + 0xEFBD, 0x640A, 0x7364, 0xF8D3, 0x5DB8, 0xD60F, 0xC161, 0x4AD6, + 0x54CD, 0xDF7A, 0xC814, 0x43A3, 0xE6C8, 0x6D7F, 0x7A11, 0xF1A6, + 0xBB70, 0x30C7, 0x27A9, 0xAC1E, 0x0975, 0x82C2, 0x95AC, 0x1E1B, + 0xA99A, 0x222D, 0x3543, 0xBEF4, 0x1B9F, 0x9028, 0x8746, 0x0CF1, + 0x4627, 0xCD90, 0xDAFE, 0x5149, 0xF422, 0x7F95, 0x68FB, 0xE34C, + 0xFD57, 0x76E0, 0x618E, 0xEA39, 0x4F52, 0xC4E5, 0xD38B, 0x583C, + 0x12EA, 0x995D, 0x8E33, 0x0584, 0xA0EF, 0x2B58, 0x3C36, 0xB781, + 0xD883, 0x5334, 0x445A, 0xCFED, 0x6A86, 0xE131, 0xF65F, 0x7DE8, + 0x373E, 0xBC89, 0xABE7, 0x2050, 0x853B, 0x0E8C, 0x19E2, 0x9255, + 0x8C4E, 0x07F9, 0x1097, 0x9B20, 0x3E4B, 0xB5FC, 0xA292, 0x2925, + 0x63F3, 0xE844, 0xFF2A, 0x749D, 0xD1F6, 0x5A41, 0x4D2F, 0xC698, + 0x7119, 0xFAAE, 0xEDC0, 0x6677, 0xC31C, 0x48AB, 0x5FC5, 0xD472, + 0x9EA4, 0x1513, 0x027D, 0x89CA, 0x2CA1, 0xA716, 0xB078, 0x3BCF, + 0x25D4, 0xAE63, 0xB90D, 0x32BA, 0x97D1, 0x1C66, 0x0B08, 0x80BF, + 0xCA69, 0x41DE, 0x56B0, 0xDD07, 0x786C, 0xF3DB, 0xE4B5, 0x6F02, + 0x3AB1, 0xB106, 0xA668, 0x2DDF, 0x88B4, 0x0303, 0x146D, 0x9FDA, + 0xD50C, 0x5EBB, 0x49D5, 0xC262, 0x6709, 0xECBE, 0xFBD0, 0x7067, + 0x6E7C, 0xE5CB, 0xF2A5, 0x7912, 0xDC79, 0x57CE, 0x40A0, 0xCB17, + 0x81C1, 0x0A76, 0x1D18, 0x96AF, 0x33C4, 0xB873, 0xAF1D, 0x24AA, + 0x932B, 0x189C, 0x0FF2, 0x8445, 0x212E, 0xAA99, 0xBDF7, 0x3640, + 0x7C96, 0xF721, 0xE04F, 0x6BF8, 0xCE93, 0x4524, 0x524A, 0xD9FD, + 0xC7E6, 0x4C51, 0x5B3F, 0xD088, 0x75E3, 0xFE54, 0xE93A, 0x628D, + 0x285B, 0xA3EC, 0xB482, 0x3F35, 0x9A5E, 0x11E9, 0x0687, 0x8D30, + 0xE232, 0x6985, 0x7EEB, 0xF55C, 0x5037, 0xDB80, 0xCCEE, 0x4759, + 0x0D8F, 0x8638, 0x9156, 0x1AE1, 0xBF8A, 0x343D, 0x2353, 0xA8E4, + 0xB6FF, 0x3D48, 0x2A26, 0xA191, 0x04FA, 0x8F4D, 0x9823, 0x1394, + 0x5942, 0xD2F5, 0xC59B, 0x4E2C, 0xEB47, 0x60F0, 0x779E, 0xFC29, + 0x4BA8, 0xC01F, 0xD771, 0x5CC6, 0xF9AD, 0x721A, 0x6574, 0xEEC3, + 0xA415, 0x2FA2, 0x38CC, 0xB37B, 0x1610, 0x9DA7, 0x8AC9, 0x017E, + 0x1F65, 0x94D2, 0x83BC, 0x080B, 0xAD60, 0x26D7, 0x31B9, 0xBA0E, + 0xF0D8, 0x7B6F, 0x6C01, 0xE7B6, 0x42DD, 0xC96A, 0xDE04, 0x55B3 +}; __u16 crc_t10dif(const unsigned char *buffer, size_t len) { - struct { - struct shash_desc shash; - char ctx[2]; - } desc; - int err; - - desc.shash.tfm = crct10dif_tfm; - desc.shash.flags = 0; - *(__u16 *)desc.ctx = 0; + __u16 crc = 0; + unsigned int i; - err = crypto_shash_update(&desc.shash, buffer, len); - BUG_ON(err); + for (i = 0 ; i < len ; i++) + crc = (crc << 8) ^ t10_dif_crc_table[((crc >> 8) ^ buffer[i]) & 0xff]; - return *(__u16 *)desc.ctx; + return crc; } EXPORT_SYMBOL(crc_t10dif); -static int __init crc_t10dif_mod_init(void) -{ - crct10dif_tfm = crypto_alloc_shash("crct10dif", 0, 0); - return PTR_RET(crct10dif_tfm); -} - -static void __exit crc_t10dif_mod_fini(void) -{ - crypto_free_shash(crct10dif_tfm); -} - -module_init(crc_t10dif_mod_init); -module_exit(crc_t10dif_mod_fini); - MODULE_DESCRIPTION("T10 DIF CRC calculation"); MODULE_LICENSE("GPL"); -- cgit v1.2.3 From 7bdc84fb82627f34d9e13c37926f70fcde38e4c4 Mon Sep 17 00:00:00 2001 From: Yadwinder Singh Brar Date: Wed, 24 Jul 2013 17:05:07 +0900 Subject: ARM: SAMSUNG: Save/restore only selected uart's registers Basically this code gets executed only during debugging i.e when DEBUG_LL & SAMSUNG_PM_DEBUG is on, so required only for UART used for debugging. Since we are removing static iodesc entries for UARTs, so now only the selected (CONFIG_DEBUG_S3C_UART) UART will be ioremapped by the debug_ll_io_init() for DEBUG_LL, so save/restore uart registers only for selected uart. Signed-off-by: Yadwinder Singh Brar Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/pm.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) diff --git a/arch/arm/plat-samsung/pm.c b/arch/arm/plat-samsung/pm.c index ea361364245..d0c23010b69 100644 --- a/arch/arm/plat-samsung/pm.c +++ b/arch/arm/plat-samsung/pm.c @@ -80,7 +80,7 @@ unsigned char pm_uart_udivslot; #ifdef CONFIG_SAMSUNG_PM_DEBUG -static struct pm_uart_save uart_save[CONFIG_SERIAL_SAMSUNG_UARTS]; +static struct pm_uart_save uart_save; static void s3c_pm_save_uart(unsigned int uart, struct pm_uart_save *save) { @@ -101,11 +101,7 @@ static void s3c_pm_save_uart(unsigned int uart, struct pm_uart_save *save) static void s3c_pm_save_uarts(void) { - struct pm_uart_save *save = uart_save; - unsigned int uart; - - for (uart = 0; uart < CONFIG_SERIAL_SAMSUNG_UARTS; uart++, save++) - s3c_pm_save_uart(uart, save); + s3c_pm_save_uart(CONFIG_DEBUG_S3C_UART, &uart_save); } static void s3c_pm_restore_uart(unsigned int uart, struct pm_uart_save *save) @@ -126,11 +122,7 @@ static void s3c_pm_restore_uart(unsigned int uart, struct pm_uart_save *save) static void s3c_pm_restore_uarts(void) { - struct pm_uart_save *save = uart_save; - unsigned int uart; - - for (uart = 0; uart < CONFIG_SERIAL_SAMSUNG_UARTS; uart++, save++) - s3c_pm_restore_uart(uart, save); + s3c_pm_restore_uart(CONFIG_DEBUG_S3C_UART, &uart_save); } #else static void s3c_pm_save_uarts(void) { } -- cgit v1.2.3 From 7ed76e089a645a12c53bc35936574f710aa11549 Mon Sep 17 00:00:00 2001 From: Yadwinder Singh Brar Date: Wed, 24 Jul 2013 17:05:32 +0900 Subject: ARM: EXYNOS: Fix low level debug support Presently, using exynos_defconfig with CONFIG_DEBUG_LL and CONFIG_EARLY_PRIN on, kernel is not booting, we are getting following: [ 0.000000] ------------[ cut here ]------------ [ 0.000000] kernel BUG at mm/vmalloc.c:1134! [ 0.000000] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.11.0-rc1 #633 [ 0.000000] task: c052ec48 ti: c0524000 task.ti: c0524000 [ 0.000000] PC is at vm_area_add_early+0x54/0x94 [ 0.000000] LR is at add_static_vm_early+0xc/0x60 Its because exynos[4/5]_map_io() function ioremaps a single 512KB memory size for all the four uart ports which envelopes the mapping created by debug_ll_io_init(), called earlier in exynos_init_io(). This patch removes iodesc entries for UART controller for all Samsung SoC's, since now the Samsung uart driver does a ioremap during probe and any needed iomapping for earlyprintk will be handled by debug_ll_io_init(). Tested on smdk4412 and smdk5250. Signed-off-by: Yadwinder Singh Brar Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/common.c | 26 -------------------------- 1 file changed, 26 deletions(-) diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index 164685bd25c..ba95e5db250 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -58,7 +58,6 @@ static const char name_exynos5440[] = "EXYNOS5440"; static void exynos4_map_io(void); static void exynos5_map_io(void); -static void exynos5440_map_io(void); static int exynos_init(void); static struct cpu_table cpu_ids[] __initdata = { @@ -95,7 +94,6 @@ static struct cpu_table cpu_ids[] __initdata = { }, { .idcode = EXYNOS5440_SOC_ID, .idmask = EXYNOS5_SOC_MASK, - .map_io = exynos5440_map_io, .init = exynos_init, .name = name_exynos5440, }, @@ -149,11 +147,6 @@ static struct map_desc exynos4_iodesc[] __initdata = { .pfn = __phys_to_pfn(EXYNOS4_PA_GIC_DIST), .length = SZ_64K, .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_UART, - .pfn = __phys_to_pfn(EXYNOS4_PA_UART), - .length = SZ_512K, - .type = MT_DEVICE, }, { .virtual = (unsigned long)S5P_VA_CMU, .pfn = __phys_to_pfn(EXYNOS4_PA_CMU), @@ -268,20 +261,6 @@ static struct map_desc exynos5_iodesc[] __initdata = { .pfn = __phys_to_pfn(EXYNOS5_PA_PMU), .length = SZ_64K, .type = MT_DEVICE, - }, { - .virtual = (unsigned long)S3C_VA_UART, - .pfn = __phys_to_pfn(EXYNOS5_PA_UART), - .length = SZ_512K, - .type = MT_DEVICE, - }, -}; - -static struct map_desc exynos5440_iodesc0[] __initdata = { - { - .virtual = (unsigned long)S3C_VA_UART, - .pfn = __phys_to_pfn(EXYNOS5440_PA_UART0), - .length = SZ_512K, - .type = MT_DEVICE, }, }; @@ -388,11 +367,6 @@ static void __init exynos5_map_io(void) iotable_init(exynos5250_iodesc, ARRAY_SIZE(exynos5250_iodesc)); } -static void __init exynos5440_map_io(void) -{ - iotable_init(exynos5440_iodesc0, ARRAY_SIZE(exynos5440_iodesc0)); -} - void __init exynos_init_time(void) { of_clk_init(NULL); -- cgit v1.2.3 From fee4b700a4e9e446151eb5a03874ca8666323113 Mon Sep 17 00:00:00 2001 From: Eldad Zack Date: Tue, 23 Jul 2013 11:15:06 +0200 Subject: ALSA: hiface: return correct XRUN indication Return SNDRV_PCM_POS_XRUN (snd_pcm_uframes_t) instead of SNDRV_PCM_STATE_XRUN (snd_pcm_state_t) from the pointer function of hiface, as expected by snd_pcm_update_hw_ptr0(). Caught by sparse. Cc: Antonio Ospite Signed-off-by: Eldad Zack Cc: Signed-off-by: Takashi Iwai --- sound/usb/hiface/pcm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/usb/hiface/pcm.c b/sound/usb/hiface/pcm.c index 6430ed2a9f6..c21a3df9a0d 100644 --- a/sound/usb/hiface/pcm.c +++ b/sound/usb/hiface/pcm.c @@ -503,7 +503,7 @@ static snd_pcm_uframes_t hiface_pcm_pointer(struct snd_pcm_substream *alsa_sub) snd_pcm_uframes_t dma_offset; if (rt->panic || !sub) - return SNDRV_PCM_STATE_XRUN; + return SNDRV_PCM_POS_XRUN; spin_lock_irqsave(&sub->lock, flags); dma_offset = sub->dma_off; -- cgit v1.2.3 From 53302bf60d2c95ee42118008499a5f5de544fcc1 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Wed, 24 Jul 2013 18:55:27 +0900 Subject: ARM: EXYNOS: Update CONFIG_ARCH_NR_GPIO for Exynos With the recent cleanup in Exynos platform code notably commits 17859bec ("ARM: EXYNOS: Do not select legacy Kconfig symbols any more") and b9222210 ("ARM: EXYNOS: Remove mach/gpio.h"), the definition of ARCH_NR_GPIOS got removed. This started causing problems on SoCs like Exynos4412 which have more than the default number of GPIOs. Thus define this number in KConfig file which takes care of current SoC requirements and provides scope for GPIO expanders. Without this patch we get the following errors during boot: gpiochip_add: gpios 251..258 (gpv0) failed to register samsung-pinctrl 106e0000.pinctrl: failed to register gpio_chip gpv0, error code: -22 samsung-pinctrl: probe of 106e0000.pinctrl failed with error -22 Signed-off-by: Sachin Kamat Cc: Tomasz Figa Signed-off-by: Kukjin Kim --- arch/arm/Kconfig | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index ba412e02ec0..37c0f4e978d 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1600,8 +1600,7 @@ config LOCAL_TIMERS config ARCH_NR_GPIO int default 1024 if ARCH_SHMOBILE || ARCH_TEGRA - default 512 if SOC_OMAP5 - default 512 if ARCH_KEYSTONE + default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 default 392 if ARCH_U8500 default 352 if ARCH_VT8500 default 288 if ARCH_SUNXI -- cgit v1.2.3 From 649e9c70da6bfbeb563193a35d3424a5aa7c0d38 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Tue, 23 Jul 2013 17:25:54 +0200 Subject: tracing: Introduce trace_create_cpu_file() and tracing_get_cpu() Every "file_operations" used by tracing_init_debugfs_percpu is buggy. f_op->open/etc does: 1. struct trace_cpu *tc = inode->i_private; struct trace_array *tr = tc->tr; 2. trace_array_get(tr) or fail; 3. do_something(tc); But tc (and tr) can be already freed before trace_array_get() is called. And it doesn't matter whether this file is per-cpu or it was created by init_tracer_debugfs(), free_percpu() or kfree() are equally bad. Note that even 1. is not safe, the freed memory can be unmapped. But even if it was safe trace_array_get() can wrongly succeed if we also race with the next new_instance_create() which can re-allocate the same tr, or tc was overwritten and ->tr points to the valid tr. In this case 3. uses the freed/reused memory. Add the new trivial helper, trace_create_cpu_file() which simply calls trace_create_file() and encodes "cpu" in "struct inode". Another helper, tracing_get_cpu() will be used to read cpu_nr-or-RING_BUFFER_ALL_CPUS. The patch abuses ->i_cdev to encode the number, it is never used unless the file is S_ISCHR(). But we could use something else, say, i_bytes or even ->d_fsdata. In any case this hack is hidden inside these 2 helpers, it would be trivial to change them if needed. This patch only changes tracing_init_debugfs_percpu() to use the new trace_create_cpu_file(), the next patches will change file_operations. Note: tracing_get_cpu(inode) is always safe but you can't trust the result unless trace_array_get() was called, without trace_types_lock which acts as a barrier it can wrongly return RING_BUFFER_ALL_CPUS. Link: http://lkml.kernel.org/r/20130723152554.GA23710@redhat.com Cc: Al Viro Signed-off-by: Oleg Nesterov Signed-off-by: Steven Rostedt --- kernel/trace/trace.c | 50 ++++++++++++++++++++++++++++++++++++-------------- 1 file changed, 36 insertions(+), 14 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 3f2477713ac..cfff63c2148 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2843,6 +2843,17 @@ static int s_show(struct seq_file *m, void *v) return 0; } +/* + * Should be used after trace_array_get(), trace_types_lock + * ensures that i_cdev was already initialized. + */ +static inline int tracing_get_cpu(struct inode *inode) +{ + if (inode->i_cdev) /* See trace_create_cpu_file() */ + return (long)inode->i_cdev - 1; + return RING_BUFFER_ALL_CPUS; +} + static const struct seq_operations tracer_seq_ops = { .start = s_start, .next = s_next, @@ -5529,6 +5540,17 @@ static struct dentry *tracing_dentry_percpu(struct trace_array *tr, int cpu) return tr->percpu_dir; } +static struct dentry * +trace_create_cpu_file(const char *name, umode_t mode, struct dentry *parent, + void *data, long cpu, const struct file_operations *fops) +{ + struct dentry *ret = trace_create_file(name, mode, parent, data, fops); + + if (ret) /* See tracing_get_cpu() */ + ret->d_inode->i_cdev = (void *)(cpu + 1); + return ret; +} + static void tracing_init_debugfs_percpu(struct trace_array *tr, long cpu) { @@ -5548,28 +5570,28 @@ tracing_init_debugfs_percpu(struct trace_array *tr, long cpu) } /* per cpu trace_pipe */ - trace_create_file("trace_pipe", 0444, d_cpu, - (void *)&data->trace_cpu, &tracing_pipe_fops); + trace_create_cpu_file("trace_pipe", 0444, d_cpu, + &data->trace_cpu, cpu, &tracing_pipe_fops); /* per cpu trace */ - trace_create_file("trace", 0644, d_cpu, - (void *)&data->trace_cpu, &tracing_fops); + trace_create_cpu_file("trace", 0644, d_cpu, + &data->trace_cpu, cpu, &tracing_fops); - trace_create_file("trace_pipe_raw", 0444, d_cpu, - (void *)&data->trace_cpu, &tracing_buffers_fops); + trace_create_cpu_file("trace_pipe_raw", 0444, d_cpu, + &data->trace_cpu, cpu, &tracing_buffers_fops); - trace_create_file("stats", 0444, d_cpu, - (void *)&data->trace_cpu, &tracing_stats_fops); + trace_create_cpu_file("stats", 0444, d_cpu, + &data->trace_cpu, cpu, &tracing_stats_fops); - trace_create_file("buffer_size_kb", 0444, d_cpu, - (void *)&data->trace_cpu, &tracing_entries_fops); + trace_create_cpu_file("buffer_size_kb", 0444, d_cpu, + &data->trace_cpu, cpu, &tracing_entries_fops); #ifdef CONFIG_TRACER_SNAPSHOT - trace_create_file("snapshot", 0644, d_cpu, - (void *)&data->trace_cpu, &snapshot_fops); + trace_create_cpu_file("snapshot", 0644, d_cpu, + &data->trace_cpu, cpu, &snapshot_fops); - trace_create_file("snapshot_raw", 0444, d_cpu, - (void *)&data->trace_cpu, &snapshot_raw_fops); + trace_create_cpu_file("snapshot_raw", 0444, d_cpu, + &data->trace_cpu, cpu, &snapshot_raw_fops); #endif } -- cgit v1.2.3 From 15544209cb0b5312e5220a9337a1fe61d1a1f2d9 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Tue, 23 Jul 2013 17:25:57 +0200 Subject: tracing: Change tracing_pipe_fops() to rely on tracing_get_cpu() tracing_open_pipe() is racy, the memory inode->i_private points to can be already freed. Change debugfs_create_file("trace_pipe", data) callers to to pass "data = tr", tracing_open_pipe() can use tracing_get_cpu(). Link: http://lkml.kernel.org/r/20130723152557.GA23717@redhat.com Signed-off-by: Oleg Nesterov Signed-off-by: Steven Rostedt --- kernel/trace/trace.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index cfff63c2148..51a99ef2a6e 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -3959,8 +3959,7 @@ tracing_max_lat_write(struct file *filp, const char __user *ubuf, static int tracing_open_pipe(struct inode *inode, struct file *filp) { - struct trace_cpu *tc = inode->i_private; - struct trace_array *tr = tc->tr; + struct trace_array *tr = inode->i_private; struct trace_iterator *iter; int ret = 0; @@ -4006,9 +4005,9 @@ static int tracing_open_pipe(struct inode *inode, struct file *filp) if (trace_clocks[tr->clock_id].in_ns) iter->iter_flags |= TRACE_FILE_TIME_IN_NS; - iter->cpu_file = tc->cpu; - iter->tr = tc->tr; - iter->trace_buffer = &tc->tr->trace_buffer; + iter->tr = tr; + iter->trace_buffer = &tr->trace_buffer; + iter->cpu_file = tracing_get_cpu(inode); mutex_init(&iter->mutex); filp->private_data = iter; @@ -4031,8 +4030,7 @@ fail: static int tracing_release_pipe(struct inode *inode, struct file *file) { struct trace_iterator *iter = file->private_data; - struct trace_cpu *tc = inode->i_private; - struct trace_array *tr = tc->tr; + struct trace_array *tr = inode->i_private; mutex_lock(&trace_types_lock); @@ -5571,7 +5569,7 @@ tracing_init_debugfs_percpu(struct trace_array *tr, long cpu) /* per cpu trace_pipe */ trace_create_cpu_file("trace_pipe", 0444, d_cpu, - &data->trace_cpu, cpu, &tracing_pipe_fops); + tr, cpu, &tracing_pipe_fops); /* per cpu trace */ trace_create_cpu_file("trace", 0644, d_cpu, @@ -6157,7 +6155,7 @@ init_tracer_debugfs(struct trace_array *tr, struct dentry *d_tracer) (void *)&tr->trace_cpu, &tracing_fops); trace_create_file("trace_pipe", 0444, d_tracer, - (void *)&tr->trace_cpu, &tracing_pipe_fops); + tr, &tracing_pipe_fops); trace_create_file("buffer_size_kb", 0644, d_tracer, (void *)&tr->trace_cpu, &tracing_entries_fops); -- cgit v1.2.3 From 46ef2be0d1d5ccea0c41bb606143586daadd537c Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Tue, 23 Jul 2013 17:26:00 +0200 Subject: tracing: Change tracing_buffers_fops to rely on tracing_get_cpu() tracing_buffers_open() is racy, the memory inode->i_private points to can be already freed. Change debugfs_create_file("trace_pipe_raw", data) caller to pass "data = tr", tracing_buffers_open() can use tracing_get_cpu(). Change debugfs_create_file("snapshot_raw_fops", data) caller too, this file uses tracing_buffers_open/release. Link: http://lkml.kernel.org/r/20130723152600.GA23720@redhat.com Signed-off-by: Oleg Nesterov Signed-off-by: Steven Rostedt --- kernel/trace/trace.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 51a99ef2a6e..30c058a56ff 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -4949,8 +4949,7 @@ static const struct file_operations snapshot_raw_fops = { static int tracing_buffers_open(struct inode *inode, struct file *filp) { - struct trace_cpu *tc = inode->i_private; - struct trace_array *tr = tc->tr; + struct trace_array *tr = inode->i_private; struct ftrace_buffer_info *info; int ret; @@ -4969,7 +4968,7 @@ static int tracing_buffers_open(struct inode *inode, struct file *filp) mutex_lock(&trace_types_lock); info->iter.tr = tr; - info->iter.cpu_file = tc->cpu; + info->iter.cpu_file = tracing_get_cpu(inode); info->iter.trace = tr->current_trace; info->iter.trace_buffer = &tr->trace_buffer; info->spare = NULL; @@ -5576,7 +5575,7 @@ tracing_init_debugfs_percpu(struct trace_array *tr, long cpu) &data->trace_cpu, cpu, &tracing_fops); trace_create_cpu_file("trace_pipe_raw", 0444, d_cpu, - &data->trace_cpu, cpu, &tracing_buffers_fops); + tr, cpu, &tracing_buffers_fops); trace_create_cpu_file("stats", 0444, d_cpu, &data->trace_cpu, cpu, &tracing_stats_fops); @@ -5589,7 +5588,7 @@ tracing_init_debugfs_percpu(struct trace_array *tr, long cpu) &data->trace_cpu, cpu, &snapshot_fops); trace_create_cpu_file("snapshot_raw", 0444, d_cpu, - &data->trace_cpu, cpu, &snapshot_raw_fops); + tr, cpu, &snapshot_raw_fops); #endif } -- cgit v1.2.3 From 4d3435b8a4c3357695e09c5e7a3bf73a19fca5b0 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Tue, 23 Jul 2013 17:26:03 +0200 Subject: tracing: Change tracing_stats_fops to rely on tracing_get_cpu() tracing_open_generic_tc() is racy, the memory inode->i_private points to can be already freed. 1. Change one of its users, tracing_stats_fops, to use tracing_*_generic_tr() instead. 2. Change trace_create_cpu_file("stats", data) to pass "data = tr". 3. Change tracing_stats_read() to use tracing_get_cpu(). Link: http://lkml.kernel.org/r/20130723152603.GA23727@redhat.com Signed-off-by: Oleg Nesterov Signed-off-by: Steven Rostedt --- kernel/trace/trace.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 30c058a56ff..e29dc8f69aa 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2982,7 +2982,6 @@ static int tracing_open_generic_tr(struct inode *inode, struct file *filp) filp->private_data = inode->i_private; return 0; - } static int tracing_open_generic_tc(struct inode *inode, struct file *filp) @@ -5285,14 +5284,14 @@ static ssize_t tracing_stats_read(struct file *filp, char __user *ubuf, size_t count, loff_t *ppos) { - struct trace_cpu *tc = filp->private_data; - struct trace_array *tr = tc->tr; + struct inode *inode = file_inode(filp); + struct trace_array *tr = inode->i_private; struct trace_buffer *trace_buf = &tr->trace_buffer; + int cpu = tracing_get_cpu(inode); struct trace_seq *s; unsigned long cnt; unsigned long long t; unsigned long usec_rem; - int cpu = tc->cpu; s = kmalloc(sizeof(*s), GFP_KERNEL); if (!s) @@ -5345,10 +5344,10 @@ tracing_stats_read(struct file *filp, char __user *ubuf, } static const struct file_operations tracing_stats_fops = { - .open = tracing_open_generic_tc, + .open = tracing_open_generic_tr, .read = tracing_stats_read, .llseek = generic_file_llseek, - .release = tracing_release_generic_tc, + .release = tracing_release_generic_tr, }; #ifdef CONFIG_DYNAMIC_FTRACE @@ -5578,7 +5577,7 @@ tracing_init_debugfs_percpu(struct trace_array *tr, long cpu) tr, cpu, &tracing_buffers_fops); trace_create_cpu_file("stats", 0444, d_cpu, - &data->trace_cpu, cpu, &tracing_stats_fops); + tr, cpu, &tracing_stats_fops); trace_create_cpu_file("buffer_size_kb", 0444, d_cpu, &data->trace_cpu, cpu, &tracing_entries_fops); -- cgit v1.2.3 From 0bc392ee46d0fd8e6b678457ef71f074f19a03c5 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Tue, 23 Jul 2013 17:26:06 +0200 Subject: tracing: Change tracing_entries_fops to rely on tracing_get_cpu() tracing_open_generic_tc() is racy, the memory inode->i_private points to can be already freed. 1. Change its last user, tracing_entries_fops, to use tracing_*_generic_tr() instead. 2. Change debugfs_create_file("buffer_size_kb", data) callers to pass "data = tr". 3. Change tracing_entries_read() and tracing_entries_write() to use tracing_get_cpu(). 4. Kill the no longer used tracing_open_generic_tc() and tracing_release_generic_tc(). Link: http://lkml.kernel.org/r/20130723152606.GA23730@redhat.com Signed-off-by: Oleg Nesterov Signed-off-by: Steven Rostedt --- kernel/trace/trace.c | 49 ++++++++++++------------------------------------- 1 file changed, 12 insertions(+), 37 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index e29dc8f69aa..68b46851666 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2984,23 +2984,6 @@ static int tracing_open_generic_tr(struct inode *inode, struct file *filp) return 0; } -static int tracing_open_generic_tc(struct inode *inode, struct file *filp) -{ - struct trace_cpu *tc = inode->i_private; - struct trace_array *tr = tc->tr; - - if (tracing_disabled) - return -ENODEV; - - if (trace_array_get(tr) < 0) - return -ENODEV; - - filp->private_data = inode->i_private; - - return 0; - -} - static int tracing_release(struct inode *inode, struct file *file) { struct seq_file *m = file->private_data; @@ -3054,15 +3037,6 @@ static int tracing_release_generic_tr(struct inode *inode, struct file *file) return 0; } -static int tracing_release_generic_tc(struct inode *inode, struct file *file) -{ - struct trace_cpu *tc = inode->i_private; - struct trace_array *tr = tc->tr; - - trace_array_put(tr); - return 0; -} - static int tracing_single_release_tr(struct inode *inode, struct file *file) { struct trace_array *tr = inode->i_private; @@ -4382,15 +4356,16 @@ static ssize_t tracing_entries_read(struct file *filp, char __user *ubuf, size_t cnt, loff_t *ppos) { - struct trace_cpu *tc = filp->private_data; - struct trace_array *tr = tc->tr; + struct inode *inode = file_inode(filp); + struct trace_array *tr = inode->i_private; + int cpu = tracing_get_cpu(inode); char buf[64]; int r = 0; ssize_t ret; mutex_lock(&trace_types_lock); - if (tc->cpu == RING_BUFFER_ALL_CPUS) { + if (cpu == RING_BUFFER_ALL_CPUS) { int cpu, buf_size_same; unsigned long size; @@ -4417,7 +4392,7 @@ tracing_entries_read(struct file *filp, char __user *ubuf, } else r = sprintf(buf, "X\n"); } else - r = sprintf(buf, "%lu\n", per_cpu_ptr(tr->trace_buffer.data, tc->cpu)->entries >> 10); + r = sprintf(buf, "%lu\n", per_cpu_ptr(tr->trace_buffer.data, cpu)->entries >> 10); mutex_unlock(&trace_types_lock); @@ -4429,7 +4404,8 @@ static ssize_t tracing_entries_write(struct file *filp, const char __user *ubuf, size_t cnt, loff_t *ppos) { - struct trace_cpu *tc = filp->private_data; + struct inode *inode = file_inode(filp); + struct trace_array *tr = inode->i_private; unsigned long val; int ret; @@ -4443,8 +4419,7 @@ tracing_entries_write(struct file *filp, const char __user *ubuf, /* value is in KB */ val <<= 10; - - ret = tracing_resize_ring_buffer(tc->tr, val, tc->cpu); + ret = tracing_resize_ring_buffer(tr, val, tracing_get_cpu(inode)); if (ret < 0) return ret; @@ -4892,11 +4867,11 @@ static const struct file_operations tracing_pipe_fops = { }; static const struct file_operations tracing_entries_fops = { - .open = tracing_open_generic_tc, + .open = tracing_open_generic_tr, .read = tracing_entries_read, .write = tracing_entries_write, .llseek = generic_file_llseek, - .release = tracing_release_generic_tc, + .release = tracing_release_generic_tr, }; static const struct file_operations tracing_total_entries_fops = { @@ -5580,7 +5555,7 @@ tracing_init_debugfs_percpu(struct trace_array *tr, long cpu) tr, cpu, &tracing_stats_fops); trace_create_cpu_file("buffer_size_kb", 0444, d_cpu, - &data->trace_cpu, cpu, &tracing_entries_fops); + tr, cpu, &tracing_entries_fops); #ifdef CONFIG_TRACER_SNAPSHOT trace_create_cpu_file("snapshot", 0644, d_cpu, @@ -6156,7 +6131,7 @@ init_tracer_debugfs(struct trace_array *tr, struct dentry *d_tracer) tr, &tracing_pipe_fops); trace_create_file("buffer_size_kb", 0644, d_tracer, - (void *)&tr->trace_cpu, &tracing_entries_fops); + tr, &tracing_entries_fops); trace_create_file("buffer_total_size_kb", 0444, d_tracer, tr, &tracing_total_entries_fops); -- cgit v1.2.3 From 6484c71cbc170634fa131b6d022d86d61686b88b Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Tue, 23 Jul 2013 17:26:10 +0200 Subject: tracing: Change tracing_fops/snapshot_fops to rely on tracing_get_cpu() tracing_open() and tracing_snapshot_open() are racy, the memory inode->i_private points to can be already freed. Convert these last users of "inode->i_private == trace_cpu" to use "i_private = trace_array" and rely on tracing_get_cpu(). v2: incorporate the fix from Steven, tracing_release() must not blindly dereference file->private_data unless we know that the file was opened for reading. Link: http://lkml.kernel.org/r/20130723152610.GA23737@redhat.com Signed-off-by: Oleg Nesterov Signed-off-by: Steven Rostedt --- kernel/trace/trace.c | 50 ++++++++++++++++++++++---------------------------- 1 file changed, 22 insertions(+), 28 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 68b46851666..dd7780ddde0 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2862,9 +2862,9 @@ static const struct seq_operations tracer_seq_ops = { }; static struct trace_iterator * -__tracing_open(struct trace_array *tr, struct trace_cpu *tc, - struct inode *inode, struct file *file, bool snapshot) +__tracing_open(struct inode *inode, struct file *file, bool snapshot) { + struct trace_array *tr = inode->i_private; struct trace_iterator *iter; int cpu; @@ -2905,8 +2905,8 @@ __tracing_open(struct trace_array *tr, struct trace_cpu *tc, iter->trace_buffer = &tr->trace_buffer; iter->snapshot = snapshot; iter->pos = -1; + iter->cpu_file = tracing_get_cpu(inode); mutex_init(&iter->mutex); - iter->cpu_file = tc->cpu; /* Notify the tracer early; before we stop tracing. */ if (iter->trace && iter->trace->open) @@ -2986,22 +2986,18 @@ static int tracing_open_generic_tr(struct inode *inode, struct file *filp) static int tracing_release(struct inode *inode, struct file *file) { + struct trace_array *tr = inode->i_private; struct seq_file *m = file->private_data; struct trace_iterator *iter; - struct trace_array *tr; int cpu; - /* Writes do not use seq_file, need to grab tr from inode */ if (!(file->f_mode & FMODE_READ)) { - struct trace_cpu *tc = inode->i_private; - - trace_array_put(tc->tr); + trace_array_put(tr); return 0; } + /* Writes do not use seq_file */ iter = m->private; - tr = iter->tr; - mutex_lock(&trace_types_lock); for_each_tracing_cpu(cpu) { @@ -3048,8 +3044,7 @@ static int tracing_single_release_tr(struct inode *inode, struct file *file) static int tracing_open(struct inode *inode, struct file *file) { - struct trace_cpu *tc = inode->i_private; - struct trace_array *tr = tc->tr; + struct trace_array *tr = inode->i_private; struct trace_iterator *iter; int ret = 0; @@ -3057,16 +3052,17 @@ static int tracing_open(struct inode *inode, struct file *file) return -ENODEV; /* If this file was open for write, then erase contents */ - if ((file->f_mode & FMODE_WRITE) && - (file->f_flags & O_TRUNC)) { - if (tc->cpu == RING_BUFFER_ALL_CPUS) + if ((file->f_mode & FMODE_WRITE) && (file->f_flags & O_TRUNC)) { + int cpu = tracing_get_cpu(inode); + + if (cpu == RING_BUFFER_ALL_CPUS) tracing_reset_online_cpus(&tr->trace_buffer); else - tracing_reset(&tr->trace_buffer, tc->cpu); + tracing_reset(&tr->trace_buffer, cpu); } if (file->f_mode & FMODE_READ) { - iter = __tracing_open(tr, tc, inode, file, false); + iter = __tracing_open(inode, file, false); if (IS_ERR(iter)) ret = PTR_ERR(iter); else if (trace_flags & TRACE_ITER_LATENCY_FMT) @@ -4680,8 +4676,7 @@ struct ftrace_buffer_info { #ifdef CONFIG_TRACER_SNAPSHOT static int tracing_snapshot_open(struct inode *inode, struct file *file) { - struct trace_cpu *tc = inode->i_private; - struct trace_array *tr = tc->tr; + struct trace_array *tr = inode->i_private; struct trace_iterator *iter; struct seq_file *m; int ret = 0; @@ -4690,7 +4685,7 @@ static int tracing_snapshot_open(struct inode *inode, struct file *file) return -ENODEV; if (file->f_mode & FMODE_READ) { - iter = __tracing_open(tr, tc, inode, file, true); + iter = __tracing_open(inode, file, true); if (IS_ERR(iter)) ret = PTR_ERR(iter); } else { @@ -4707,8 +4702,8 @@ static int tracing_snapshot_open(struct inode *inode, struct file *file) ret = 0; iter->tr = tr; - iter->trace_buffer = &tc->tr->max_buffer; - iter->cpu_file = tc->cpu; + iter->trace_buffer = &tr->max_buffer; + iter->cpu_file = tracing_get_cpu(inode); m->private = iter; file->private_data = m; } @@ -5525,7 +5520,6 @@ trace_create_cpu_file(const char *name, umode_t mode, struct dentry *parent, static void tracing_init_debugfs_percpu(struct trace_array *tr, long cpu) { - struct trace_array_cpu *data = per_cpu_ptr(tr->trace_buffer.data, cpu); struct dentry *d_percpu = tracing_dentry_percpu(tr, cpu); struct dentry *d_cpu; char cpu_dir[30]; /* 30 characters should be more than enough */ @@ -5546,7 +5540,7 @@ tracing_init_debugfs_percpu(struct trace_array *tr, long cpu) /* per cpu trace */ trace_create_cpu_file("trace", 0644, d_cpu, - &data->trace_cpu, cpu, &tracing_fops); + tr, cpu, &tracing_fops); trace_create_cpu_file("trace_pipe_raw", 0444, d_cpu, tr, cpu, &tracing_buffers_fops); @@ -5559,7 +5553,7 @@ tracing_init_debugfs_percpu(struct trace_array *tr, long cpu) #ifdef CONFIG_TRACER_SNAPSHOT trace_create_cpu_file("snapshot", 0644, d_cpu, - &data->trace_cpu, cpu, &snapshot_fops); + tr, cpu, &snapshot_fops); trace_create_cpu_file("snapshot_raw", 0444, d_cpu, tr, cpu, &snapshot_raw_fops); @@ -6125,7 +6119,7 @@ init_tracer_debugfs(struct trace_array *tr, struct dentry *d_tracer) tr, &tracing_iter_fops); trace_create_file("trace", 0644, d_tracer, - (void *)&tr->trace_cpu, &tracing_fops); + tr, &tracing_fops); trace_create_file("trace_pipe", 0444, d_tracer, tr, &tracing_pipe_fops); @@ -6146,11 +6140,11 @@ init_tracer_debugfs(struct trace_array *tr, struct dentry *d_tracer) &trace_clock_fops); trace_create_file("tracing_on", 0644, d_tracer, - tr, &rb_simple_fops); + tr, &rb_simple_fops); #ifdef CONFIG_TRACER_SNAPSHOT trace_create_file("snapshot", 0644, d_tracer, - (void *)&tr->trace_cpu, &snapshot_fops); + tr, &snapshot_fops); #endif for_each_tracing_cpu(cpu) -- cgit v1.2.3 From 9c01fe4593db123c5a72dc36f0400f776e92c954 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Tue, 23 Jul 2013 17:26:13 +0200 Subject: tracing: Kill trace_cpu struct/members After the previous changes trace_array_cpu->trace_cpu and trace_array->trace_cpu becomes write-only. Remove these members and kill "struct trace_cpu" as well. As a side effect this also removes memset(per_cpu_memory, 0). It was not needed, alloc_percpu() returns zero-filled memory. Link: http://lkml.kernel.org/r/20130723152613.GA23741@redhat.com Signed-off-by: Oleg Nesterov Signed-off-by: Steven Rostedt --- kernel/trace/trace.c | 21 --------------------- kernel/trace/trace.h | 8 -------- 2 files changed, 29 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index dd7780ddde0..69cba470ea9 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -5865,17 +5865,6 @@ struct dentry *trace_instance_dir; static void init_tracer_debugfs(struct trace_array *tr, struct dentry *d_tracer); -static void init_trace_buffers(struct trace_array *tr, struct trace_buffer *buf) -{ - int cpu; - - for_each_tracing_cpu(cpu) { - memset(per_cpu_ptr(buf->data, cpu), 0, sizeof(struct trace_array_cpu)); - per_cpu_ptr(buf->data, cpu)->trace_cpu.cpu = cpu; - per_cpu_ptr(buf->data, cpu)->trace_cpu.tr = tr; - } -} - static int allocate_trace_buffer(struct trace_array *tr, struct trace_buffer *buf, int size) { @@ -5893,8 +5882,6 @@ allocate_trace_buffer(struct trace_array *tr, struct trace_buffer *buf, int size return -ENOMEM; } - init_trace_buffers(tr, buf); - /* Allocate the first page for all buffers */ set_buffer_entries(&tr->trace_buffer, ring_buffer_size(tr->trace_buffer.buffer, 0)); @@ -5961,10 +5948,6 @@ static int new_instance_create(const char *name) if (allocate_trace_buffers(tr, trace_buf_size) < 0) goto out_free_tr; - /* Holder for file callbacks */ - tr->trace_cpu.cpu = RING_BUFFER_ALL_CPUS; - tr->trace_cpu.tr = tr; - tr->dir = debugfs_create_dir(name, trace_instance_dir); if (!tr->dir) goto out_free_tr; @@ -6438,10 +6421,6 @@ __init static int tracer_alloc_buffers(void) global_trace.flags = TRACE_ARRAY_FL_GLOBAL; - /* Holder for file callbacks */ - global_trace.trace_cpu.cpu = RING_BUFFER_ALL_CPUS; - global_trace.trace_cpu.tr = &global_trace; - INIT_LIST_HEAD(&global_trace.systems); INIT_LIST_HEAD(&global_trace.events); list_add(&global_trace.list, &ftrace_trace_arrays); diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index e7d643b8a90..afaae41b0a0 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -130,19 +130,12 @@ enum trace_flag_type { struct trace_array; -struct trace_cpu { - struct trace_array *tr; - struct dentry *dir; - int cpu; -}; - /* * The CPU trace array - it consists of thousands of trace entries * plus some other descriptor data: (for example which task started * the trace, etc.) */ struct trace_array_cpu { - struct trace_cpu trace_cpu; atomic_t disabled; void *buffer_page; /* ring buffer spare */ @@ -196,7 +189,6 @@ struct trace_array { bool allocated_snapshot; #endif int buffer_disabled; - struct trace_cpu trace_cpu; /* place holder */ #ifdef CONFIG_FTRACE_SYSCALLS int sys_refcount_enter; int sys_refcount_exit; -- cgit v1.2.3 From 195a8afc7ac962f8da795549fe38e825f1372b0d Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (Red Hat)" Date: Tue, 23 Jul 2013 22:06:15 -0400 Subject: ftrace: Add check for NULL regs if ops has SAVE_REGS set If a ftrace ops is registered with the SAVE_REGS flag set, and there's already a ops registered to one of its functions but without the SAVE_REGS flag, there's a small race window where the SAVE_REGS ops gets added to the list of callbacks to call for that function before the callback trampoline gets set to save the regs. The problem is, the function is not currently saving regs, which opens a small race window where the ops that is expecting regs to be passed to it, wont. This can cause a crash if the callback were to reference the regs, as the SAVE_REGS guarantees that regs will be set. To fix this, we add a check in the loop case where it checks if the ops has the SAVE_REGS flag set, and if so, it will ignore it if regs is not set. Signed-off-by: Steven Rostedt --- kernel/trace/ftrace.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 67708f46baa..8ce9eefc5bb 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -1441,12 +1441,22 @@ ftrace_hash_move(struct ftrace_ops *ops, int enable, * the hashes are freed with call_rcu_sched(). */ static int -ftrace_ops_test(struct ftrace_ops *ops, unsigned long ip) +ftrace_ops_test(struct ftrace_ops *ops, unsigned long ip, void *regs) { struct ftrace_hash *filter_hash; struct ftrace_hash *notrace_hash; int ret; +#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS + /* + * There's a small race when adding ops that the ftrace handler + * that wants regs, may be called without them. We can not + * allow that handler to be called if regs is NULL. + */ + if (regs == NULL && (ops->flags & FTRACE_OPS_FL_SAVE_REGS)) + return 0; +#endif + filter_hash = rcu_dereference_raw_notrace(ops->filter_hash); notrace_hash = rcu_dereference_raw_notrace(ops->notrace_hash); @@ -4218,7 +4228,7 @@ static inline void ftrace_startup_enable(int command) { } # define ftrace_shutdown_sysctl() do { } while (0) static inline int -ftrace_ops_test(struct ftrace_ops *ops, unsigned long ip) +ftrace_ops_test(struct ftrace_ops *ops, unsigned long ip, void *regs) { return 1; } @@ -4241,7 +4251,7 @@ ftrace_ops_control_func(unsigned long ip, unsigned long parent_ip, do_for_each_ftrace_op(op, ftrace_control_list) { if (!(op->flags & FTRACE_OPS_FL_STUB) && !ftrace_function_local_disabled(op) && - ftrace_ops_test(op, ip)) + ftrace_ops_test(op, ip, regs)) op->func(ip, parent_ip, op, regs); } while_for_each_ftrace_op(op); trace_recursion_clear(TRACE_CONTROL_BIT); @@ -4274,7 +4284,7 @@ __ftrace_ops_list_func(unsigned long ip, unsigned long parent_ip, */ preempt_disable_notrace(); do_for_each_ftrace_op(op, ftrace_ops_list) { - if (ftrace_ops_test(op, ip)) + if (ftrace_ops_test(op, ip, regs)) op->func(ip, parent_ip, op, regs); } while_for_each_ftrace_op(op); preempt_enable_notrace(); -- cgit v1.2.3 From 6a6c21ef487be47b300a0b24cd6afeb69d8b9a1a Mon Sep 17 00:00:00 2001 From: Richard Zhu Date: Wed, 24 Jul 2013 14:15:28 +0800 Subject: ARM: imx6q: update the sata bits definitions of gpr13 Replace the SATA_PHY_# by the more readable definitons. tj: Being routed through libata branch to enable implementation of ahci_imx. Signed-off-by: Richard Zhu Acked-by: Shawn Guo Signed-off-by: Tejun Heo --- include/linux/mfd/syscon/imx6q-iomuxc-gpr.h | 121 +++++++++++++++++++--------- 1 file changed, 84 insertions(+), 37 deletions(-) diff --git a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h index dab34a1deb2..e235251f1ba 100644 --- a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h +++ b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h @@ -279,41 +279,88 @@ #define IMX6Q_GPR13_CAN2_STOP_REQ BIT(29) #define IMX6Q_GPR13_CAN1_STOP_REQ BIT(28) #define IMX6Q_GPR13_ENET_STOP_REQ BIT(27) -#define IMX6Q_GPR13_SATA_PHY_8_MASK (0x7 << 24) -#define IMX6Q_GPR13_SATA_PHY_8_0_5_DB (0x0 << 24) -#define IMX6Q_GPR13_SATA_PHY_8_1_0_DB (0x1 << 24) -#define IMX6Q_GPR13_SATA_PHY_8_1_5_DB (0x2 << 24) -#define IMX6Q_GPR13_SATA_PHY_8_2_0_DB (0x3 << 24) -#define IMX6Q_GPR13_SATA_PHY_8_2_5_DB (0x4 << 24) -#define IMX6Q_GPR13_SATA_PHY_8_3_0_DB (0x5 << 24) -#define IMX6Q_GPR13_SATA_PHY_8_3_5_DB (0x6 << 24) -#define IMX6Q_GPR13_SATA_PHY_8_4_0_DB (0x7 << 24) -#define IMX6Q_GPR13_SATA_PHY_7_MASK (0x1f << 19) -#define IMX6Q_GPR13_SATA_PHY_7_SATA1I (0x10 << 19) -#define IMX6Q_GPR13_SATA_PHY_7_SATA1M (0x10 << 19) -#define IMX6Q_GPR13_SATA_PHY_7_SATA1X (0x1a << 19) -#define IMX6Q_GPR13_SATA_PHY_7_SATA2I (0x12 << 19) -#define IMX6Q_GPR13_SATA_PHY_7_SATA2M (0x12 << 19) -#define IMX6Q_GPR13_SATA_PHY_7_SATA2X (0x1a << 19) -#define IMX6Q_GPR13_SATA_PHY_6_MASK (0x7 << 16) -#define IMX6Q_GPR13_SATA_SPEED_MASK BIT(15) -#define IMX6Q_GPR13_SATA_SPEED_1P5G 0x0 -#define IMX6Q_GPR13_SATA_SPEED_3P0G BIT(15) -#define IMX6Q_GPR13_SATA_PHY_5 BIT(14) -#define IMX6Q_GPR13_SATA_PHY_4_MASK (0x7 << 11) -#define IMX6Q_GPR13_SATA_PHY_4_16_16 (0x0 << 11) -#define IMX6Q_GPR13_SATA_PHY_4_14_16 (0x1 << 11) -#define IMX6Q_GPR13_SATA_PHY_4_12_16 (0x2 << 11) -#define IMX6Q_GPR13_SATA_PHY_4_10_16 (0x3 << 11) -#define IMX6Q_GPR13_SATA_PHY_4_9_16 (0x4 << 11) -#define IMX6Q_GPR13_SATA_PHY_4_8_16 (0x5 << 11) -#define IMX6Q_GPR13_SATA_PHY_3_MASK (0xf << 7) -#define IMX6Q_GPR13_SATA_PHY_3_OFF 0x7 -#define IMX6Q_GPR13_SATA_PHY_2_MASK (0x1f << 2) -#define IMX6Q_GPR13_SATA_PHY_2_OFF 0x2 -#define IMX6Q_GPR13_SATA_PHY_1_MASK (0x3 << 0) -#define IMX6Q_GPR13_SATA_PHY_1_FAST (0x0 << 0) -#define IMX6Q_GPR13_SATA_PHY_1_MED (0x1 << 0) -#define IMX6Q_GPR13_SATA_PHY_1_SLOW (0x2 << 0) - +#define IMX6Q_GPR13_SATA_RX_EQ_VAL_MASK (0x7 << 24) +#define IMX6Q_GPR13_SATA_RX_EQ_VAL_0_5_DB (0x0 << 24) +#define IMX6Q_GPR13_SATA_RX_EQ_VAL_1_0_DB (0x1 << 24) +#define IMX6Q_GPR13_SATA_RX_EQ_VAL_1_5_DB (0x2 << 24) +#define IMX6Q_GPR13_SATA_RX_EQ_VAL_2_0_DB (0x3 << 24) +#define IMX6Q_GPR13_SATA_RX_EQ_VAL_2_5_DB (0x4 << 24) +#define IMX6Q_GPR13_SATA_RX_EQ_VAL_3_0_DB (0x5 << 24) +#define IMX6Q_GPR13_SATA_RX_EQ_VAL_3_5_DB (0x6 << 24) +#define IMX6Q_GPR13_SATA_RX_EQ_VAL_4_0_DB (0x7 << 24) +#define IMX6Q_GPR13_SATA_RX_LOS_LVL_MASK (0x1f << 19) +#define IMX6Q_GPR13_SATA_RX_LOS_LVL_SATA1I (0x10 << 19) +#define IMX6Q_GPR13_SATA_RX_LOS_LVL_SATA1M (0x10 << 19) +#define IMX6Q_GPR13_SATA_RX_LOS_LVL_SATA1X (0x1a << 19) +#define IMX6Q_GPR13_SATA_RX_LOS_LVL_SATA2I (0x12 << 19) +#define IMX6Q_GPR13_SATA_RX_LOS_LVL_SATA2M (0x12 << 19) +#define IMX6Q_GPR13_SATA_RX_LOS_LVL_SATA2X (0x1a << 19) +#define IMX6Q_GPR13_SATA_RX_DPLL_MODE_MASK (0x7 << 16) +#define IMX6Q_GPR13_SATA_RX_DPLL_MODE_1P_1F (0x0 << 16) +#define IMX6Q_GPR13_SATA_RX_DPLL_MODE_2P_2F (0x1 << 16) +#define IMX6Q_GPR13_SATA_RX_DPLL_MODE_1P_4F (0x2 << 16) +#define IMX6Q_GPR13_SATA_RX_DPLL_MODE_2P_4F (0x3 << 16) +#define IMX6Q_GPR13_SATA_SPD_MODE_MASK BIT(15) +#define IMX6Q_GPR13_SATA_SPD_MODE_1P5G 0x0 +#define IMX6Q_GPR13_SATA_SPD_MODE_3P0G BIT(15) +#define IMX6Q_GPR13_SATA_MPLL_SS_EN BIT(14) +#define IMX6Q_GPR13_SATA_TX_ATTEN_MASK (0x7 << 11) +#define IMX6Q_GPR13_SATA_TX_ATTEN_16_16 (0x0 << 11) +#define IMX6Q_GPR13_SATA_TX_ATTEN_14_16 (0x1 << 11) +#define IMX6Q_GPR13_SATA_TX_ATTEN_12_16 (0x2 << 11) +#define IMX6Q_GPR13_SATA_TX_ATTEN_10_16 (0x3 << 11) +#define IMX6Q_GPR13_SATA_TX_ATTEN_9_16 (0x4 << 11) +#define IMX6Q_GPR13_SATA_TX_ATTEN_8_16 (0x5 << 11) +#define IMX6Q_GPR13_SATA_TX_BOOST_MASK (0xf << 7) +#define IMX6Q_GPR13_SATA_TX_BOOST_0_00_DB (0x0 << 7) +#define IMX6Q_GPR13_SATA_TX_BOOST_0_37_DB (0x1 << 7) +#define IMX6Q_GPR13_SATA_TX_BOOST_0_74_DB (0x2 << 7) +#define IMX6Q_GPR13_SATA_TX_BOOST_1_11_DB (0x3 << 7) +#define IMX6Q_GPR13_SATA_TX_BOOST_1_48_DB (0x4 << 7) +#define IMX6Q_GPR13_SATA_TX_BOOST_1_85_DB (0x5 << 7) +#define IMX6Q_GPR13_SATA_TX_BOOST_2_22_DB (0x6 << 7) +#define IMX6Q_GPR13_SATA_TX_BOOST_2_59_DB (0x7 << 7) +#define IMX6Q_GPR13_SATA_TX_BOOST_2_96_DB (0x8 << 7) +#define IMX6Q_GPR13_SATA_TX_BOOST_3_33_DB (0x9 << 7) +#define IMX6Q_GPR13_SATA_TX_BOOST_3_70_DB (0xa << 7) +#define IMX6Q_GPR13_SATA_TX_BOOST_4_07_DB (0xb << 7) +#define IMX6Q_GPR13_SATA_TX_BOOST_4_44_DB (0xc << 7) +#define IMX6Q_GPR13_SATA_TX_BOOST_4_81_DB (0xd << 7) +#define IMX6Q_GPR13_SATA_TX_BOOST_5_28_DB (0xe << 7) +#define IMX6Q_GPR13_SATA_TX_BOOST_5_75_DB (0xf << 7) +#define IMX6Q_GPR13_SATA_TX_LVL_MASK (0x1f << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_0_937_V (0x00 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_0_947_V (0x01 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_0_957_V (0x02 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_0_966_V (0x03 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_0_976_V (0x04 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_0_986_V (0x05 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_0_996_V (0x06 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_005_V (0x07 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_015_V (0x08 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_025_V (0x09 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_035_V (0x0a << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_045_V (0x0b << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_054_V (0x0c << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_064_V (0x0d << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_074_V (0x0e << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_084_V (0x0f << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_094_V (0x10 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_104_V (0x11 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_113_V (0x12 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_123_V (0x13 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_133_V (0x14 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_143_V (0x15 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_152_V (0x16 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_162_V (0x17 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_172_V (0x18 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_182_V (0x19 << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_191_V (0x1a << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_201_V (0x1b << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_211_V (0x1c << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_221_V (0x1d << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_230_V (0x1e << 2) +#define IMX6Q_GPR13_SATA_TX_LVL_1_240_V (0x1f << 2) +#define IMX6Q_GPR13_SATA_MPLL_CLK_EN BIT(1) +#define IMX6Q_GPR13_SATA_TX_EDGE_RATE BIT(0) #endif /* __LINUX_IMX6Q_IOMUXC_GPR_H */ -- cgit v1.2.3 From 9e54eae23bc9cca0d8a955018c35b1250e09a73a Mon Sep 17 00:00:00 2001 From: Richard Zhu Date: Wed, 24 Jul 2013 14:15:29 +0800 Subject: ahci_imx: add ahci sata support on imx platforms imx6q contains one Synopsys AHCI SATA controller, But it can't share ahci_platform driver with other controllers because there are some misalignments of the generic AHCI controller - the bits definitions of the HBA registers, the Vendor Specific registers, the AHCI PHY clock and the AHCI signals adjustment window(GPR13 register). - CAP_SSS(bit20) of the HOST_CAP is writable, default value is '0', should be configured to be '1' - bit0 (only one AHCI SATA port on imx6q) of the HOST_PORTS_IMPL should be set to be '1'.(default 0) - One Vendor Specific register HOST_TIMER1MS(offset:0xe0) should be configured regarding to the frequency of AHB bus clock. - Configurations of the AHCI PHY clock, and the signal parameters of the GPR13 Setup its own ahci sata driver, contained the imx6q specific initialized codes, re-use the generic ahci_platform driver, and keep the generic ahci_platform driver clean as much as possible. tj: patch description reformatted Signed-off-by: Richard Zhu Reviewed-by: Shawn Guo Signed-off-by: Tejun Heo --- drivers/ata/Kconfig | 9 ++ drivers/ata/Makefile | 1 + drivers/ata/ahci_imx.c | 236 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 246 insertions(+) create mode 100644 drivers/ata/ahci_imx.c diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index 5cddaf86cd0..a4af0a2a089 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -97,6 +97,15 @@ config SATA_AHCI_PLATFORM If unsure, say N. +config AHCI_IMX + tristate "Freescale i.MX AHCI SATA support" + depends on SATA_AHCI_PLATFORM + help + This option enables support for the Freescale i.MX SoC's + onboard AHCI SATA. + + If unsure, say N. + config SATA_FSL tristate "Freescale 3.0Gbps SATA support" depends on FSL_SOC diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile index c04d0fd038a..46518c62246 100644 --- a/drivers/ata/Makefile +++ b/drivers/ata/Makefile @@ -10,6 +10,7 @@ obj-$(CONFIG_SATA_INIC162X) += sata_inic162x.o obj-$(CONFIG_SATA_SIL24) += sata_sil24.o obj-$(CONFIG_SATA_DWC) += sata_dwc_460ex.o obj-$(CONFIG_SATA_HIGHBANK) += sata_highbank.o libahci.o +obj-$(CONFIG_AHCI_IMX) += ahci_imx.o # SFF w/ custom DMA obj-$(CONFIG_PDC_ADMA) += pdc_adma.o diff --git a/drivers/ata/ahci_imx.c b/drivers/ata/ahci_imx.c new file mode 100644 index 00000000000..58debb0acc3 --- /dev/null +++ b/drivers/ata/ahci_imx.c @@ -0,0 +1,236 @@ +/* + * Freescale IMX AHCI SATA platform driver + * Copyright 2013 Freescale Semiconductor, Inc. + * + * based on the AHCI SATA platform driver by Jeff Garzik and Anton Vorontsov + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include "ahci.h" + +enum { + HOST_TIMER1MS = 0xe0, /* Timer 1-ms */ +}; + +struct imx_ahci_priv { + struct platform_device *ahci_pdev; + struct clk *sata_ref_clk; + struct clk *ahb_clk; + struct regmap *gpr; +}; + +static int imx6q_sata_init(struct device *dev, void __iomem *mmio) +{ + int ret = 0; + unsigned int reg_val; + struct imx_ahci_priv *imxpriv = dev_get_drvdata(dev->parent); + + imxpriv->gpr = + syscon_regmap_lookup_by_compatible("fsl,imx6q-iomuxc-gpr"); + if (IS_ERR(imxpriv->gpr)) { + dev_err(dev, "failed to find fsl,imx6q-iomux-gpr regmap\n"); + return PTR_ERR(imxpriv->gpr); + } + + ret = clk_prepare_enable(imxpriv->sata_ref_clk); + if (ret < 0) { + dev_err(dev, "prepare-enable sata_ref clock err:%d\n", ret); + return ret; + } + + /* + * set PHY Paremeters, two steps to configure the GPR13, + * one write for rest of parameters, mask of first write + * is 0x07fffffd, and the other one write for setting + * the mpll_clk_en. + */ + regmap_update_bits(imxpriv->gpr, 0x34, IMX6Q_GPR13_SATA_RX_EQ_VAL_MASK + | IMX6Q_GPR13_SATA_RX_LOS_LVL_MASK + | IMX6Q_GPR13_SATA_RX_DPLL_MODE_MASK + | IMX6Q_GPR13_SATA_SPD_MODE_MASK + | IMX6Q_GPR13_SATA_MPLL_SS_EN + | IMX6Q_GPR13_SATA_TX_ATTEN_MASK + | IMX6Q_GPR13_SATA_TX_BOOST_MASK + | IMX6Q_GPR13_SATA_TX_LVL_MASK + | IMX6Q_GPR13_SATA_TX_EDGE_RATE + , IMX6Q_GPR13_SATA_RX_EQ_VAL_3_0_DB + | IMX6Q_GPR13_SATA_RX_LOS_LVL_SATA2M + | IMX6Q_GPR13_SATA_RX_DPLL_MODE_2P_4F + | IMX6Q_GPR13_SATA_SPD_MODE_3P0G + | IMX6Q_GPR13_SATA_MPLL_SS_EN + | IMX6Q_GPR13_SATA_TX_ATTEN_9_16 + | IMX6Q_GPR13_SATA_TX_BOOST_3_33_DB + | IMX6Q_GPR13_SATA_TX_LVL_1_025_V); + regmap_update_bits(imxpriv->gpr, 0x34, IMX6Q_GPR13_SATA_MPLL_CLK_EN, + IMX6Q_GPR13_SATA_MPLL_CLK_EN); + usleep_range(100, 200); + + /* + * Configure the HWINIT bits of the HOST_CAP and HOST_PORTS_IMPL, + * and IP vendor specific register HOST_TIMER1MS. + * Configure CAP_SSS (support stagered spin up). + * Implement the port0. + * Get the ahb clock rate, and configure the TIMER1MS register. + */ + reg_val = readl(mmio + HOST_CAP); + if (!(reg_val & HOST_CAP_SSS)) { + reg_val |= HOST_CAP_SSS; + writel(reg_val, mmio + HOST_CAP); + } + reg_val = readl(mmio + HOST_PORTS_IMPL); + if (!(reg_val & 0x1)) { + reg_val |= 0x1; + writel(reg_val, mmio + HOST_PORTS_IMPL); + } + + reg_val = clk_get_rate(imxpriv->ahb_clk) / 1000; + writel(reg_val, mmio + HOST_TIMER1MS); + + return 0; +} + +static void imx6q_sata_exit(struct device *dev) +{ + struct imx_ahci_priv *imxpriv = dev_get_drvdata(dev->parent); + + regmap_update_bits(imxpriv->gpr, 0x34, IMX6Q_GPR13_SATA_MPLL_CLK_EN, + !IMX6Q_GPR13_SATA_MPLL_CLK_EN); + clk_disable_unprepare(imxpriv->sata_ref_clk); +} + +static struct ahci_platform_data imx6q_sata_pdata = { + .init = imx6q_sata_init, + .exit = imx6q_sata_exit, +}; + +static const struct of_device_id imx_ahci_of_match[] = { + { .compatible = "fsl,imx6q-ahci", .data = &imx6q_sata_pdata}, + {}, +}; +MODULE_DEVICE_TABLE(of, imx_ahci_of_match); + +static int imx_ahci_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct resource *mem, *irq, res[2]; + const struct of_device_id *of_id; + const struct ahci_platform_data *pdata = NULL; + struct imx_ahci_priv *imxpriv; + struct device *ahci_dev; + struct platform_device *ahci_pdev; + int ret; + + imxpriv = devm_kzalloc(dev, sizeof(*imxpriv), GFP_KERNEL); + if (!imxpriv) { + dev_err(dev, "can't alloc ahci_host_priv\n"); + return -ENOMEM; + } + + ahci_pdev = platform_device_alloc("ahci", -1); + if (!ahci_pdev) + return -ENODEV; + + ahci_dev = &ahci_pdev->dev; + ahci_dev->parent = dev; + + imxpriv->ahb_clk = devm_clk_get(dev, "ahb"); + if (IS_ERR(imxpriv->ahb_clk)) { + dev_err(dev, "can't get ahb clock.\n"); + ret = PTR_ERR(imxpriv->ahb_clk); + goto err_out; + } + + imxpriv->sata_ref_clk = devm_clk_get(dev, "sata_ref"); + if (IS_ERR(imxpriv->sata_ref_clk)) { + dev_err(dev, "can't get sata_ref clock.\n"); + ret = PTR_ERR(imxpriv->sata_ref_clk); + goto err_out; + } + + imxpriv->ahci_pdev = ahci_pdev; + platform_set_drvdata(pdev, imxpriv); + + of_id = of_match_device(imx_ahci_of_match, dev); + if (of_id) { + pdata = of_id->data; + } else { + ret = -EINVAL; + goto err_out; + } + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!mem || !irq) { + dev_err(dev, "no mmio/irq resource\n"); + ret = -ENOMEM; + goto err_out; + } + + res[0] = *mem; + res[1] = *irq; + + ahci_dev->coherent_dma_mask = DMA_BIT_MASK(32); + ahci_dev->dma_mask = &ahci_dev->coherent_dma_mask; + ahci_dev->of_node = dev->of_node; + + ret = platform_device_add_resources(ahci_pdev, res, 2); + if (ret) + goto err_out; + + ret = platform_device_add_data(ahci_pdev, pdata, sizeof(*pdata)); + if (ret) + goto err_out; + + ret = platform_device_add(ahci_pdev); + if (ret) { +err_out: + platform_device_put(ahci_pdev); + return ret; + } + + return 0; +} + +static int imx_ahci_remove(struct platform_device *pdev) +{ + struct imx_ahci_priv *imxpriv = platform_get_drvdata(pdev); + struct platform_device *ahci_pdev = imxpriv->ahci_pdev; + + platform_device_unregister(ahci_pdev); + return 0; +} + +static struct platform_driver imx_ahci_driver = { + .probe = imx_ahci_probe, + .remove = imx_ahci_remove, + .driver = { + .name = "ahci-imx", + .owner = THIS_MODULE, + .of_match_table = imx_ahci_of_match, + }, +}; +module_platform_driver(imx_ahci_driver); + +MODULE_DESCRIPTION("Freescale i.MX AHCI SATA platform driver"); +MODULE_AUTHOR("Richard Zhu "); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("ahci:imx"); -- cgit v1.2.3 From 932ef3685f287799fa844862d607a6b596ba5b9e Mon Sep 17 00:00:00 2001 From: Jingoo Han Date: Wed, 24 Jul 2013 14:34:08 +0900 Subject: staging: tidspbridge: replace strict_strtol() with kstrtos32() The usage of strict_strtol() is not preferred, because strict_strtol() is obsolete. Thus, kstrtos32() should be used in order to convert a string to s32. Also, error handling is added to get rid of a __must_check warning. This fixes a memory corruption bug as well. Signed-off-by: Jingoo Han Reviewed-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman --- drivers/staging/tidspbridge/pmgr/dbll.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/staging/tidspbridge/pmgr/dbll.c b/drivers/staging/tidspbridge/pmgr/dbll.c index c191ae20356..41e88abe47a 100644 --- a/drivers/staging/tidspbridge/pmgr/dbll.c +++ b/drivers/staging/tidspbridge/pmgr/dbll.c @@ -1120,8 +1120,11 @@ static int dbll_rmm_alloc(struct dynamic_loader_allocate *this, or DYN_EXTERNAL, then mem granularity information is present within the section name - only process if there are at least three tokens within the section name (just a minor optimization) */ - if (count >= 3) - strict_strtol(sz_last_token, 10, (long *)&req); + if (count >= 3) { + status = kstrtos32(sz_last_token, 10, &req); + if (status) + goto func_cont; + } if ((req == 0) || (req == 1)) { if (strcmp(sz_sec_last_token, "DYN_DARAM") == 0) { -- cgit v1.2.3 From 81b884c9dfe6753a78df0cbf4e96f095d718bd95 Mon Sep 17 00:00:00 2001 From: Lidza Louina Date: Wed, 24 Jul 2013 11:29:33 -0400 Subject: MAINTAINERS: Update the list of maintainers for staging/comedi driver. This patch updates the list of maintainers for the staging/comedi driver. Signed-off-by: Lidza Louina Acked-by: H Hartley Sweeten Acked-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- MAINTAINERS | 2 +- drivers/staging/comedi/TODO | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index bf61e04291a..6ddb33d5c65 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7812,7 +7812,7 @@ F: drivers/staging/asus_oled/ STAGING - COMEDI M: Ian Abbott -M: Mori Hess +M: H Hartley Sweeten S: Odd Fixes F: drivers/staging/comedi/ diff --git a/drivers/staging/comedi/TODO b/drivers/staging/comedi/TODO index b10f739b7e3..fa8da9aada3 100644 --- a/drivers/staging/comedi/TODO +++ b/drivers/staging/comedi/TODO @@ -9,4 +9,4 @@ TODO: Please send patches to Greg Kroah-Hartman and copy: Ian Abbott - Frank Mori Hess + H Hartley Sweeten -- cgit v1.2.3 From e1be09808e030d57bb743618eb41e2bc31dd464c Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Wed, 24 Jul 2013 12:43:18 -0700 Subject: [SCSI] isci: fix breakage caused by >16byte CDB patch Oops, apparently no-one I cc'd at intel actually bothered to check this patch for the isci driver: commit e73823f7a2c921dcf068d34ea03bd682498d9e42 Author: James Bottomley Date: Tue May 7 15:38:18 2013 -0700 [SCSI] libsas: implement > 16 byte CDB support sci_swab32_cpy needs multiples of four, so for commands that aren't that, it's rounding the wrong way. fix by doing (len+3)/4 instead of len/4. Reported-by: Tony Luck Tested-by: Tony Luck Signed-off-by: James Bottomley --- drivers/scsi/isci/request.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/isci/request.c b/drivers/scsi/isci/request.c index 7b082157eb7..99d2930b18c 100644 --- a/drivers/scsi/isci/request.c +++ b/drivers/scsi/isci/request.c @@ -185,7 +185,7 @@ static void sci_io_request_build_ssp_command_iu(struct isci_request *ireq) cmd_iu->_r_c = 0; sci_swab32_cpy(&cmd_iu->cdb, task->ssp_task.cmd->cmnd, - task->ssp_task.cmd->cmd_len / sizeof(u32)); + (task->ssp_task.cmd->cmd_len+3) / sizeof(u32)); } static void sci_task_request_build_ssp_task_iu(struct isci_request *ireq) -- cgit v1.2.3 From 2652c2163d781676284b2af494a97e64d65a5ee6 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 19 Jul 2013 08:53:13 +0300 Subject: TTY: snyclinkmp: calculating wrong addresses This is a static checker fix and I don't have a way to test it. But from the context it looks like this is a typo where SCABUFSIZE was intended instead of sizeof(SCABUFSIZE). SCABUFSIZE is 1024 and sizeof(int) is 4. I would suspect this is a bad bug. Signed-off-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman --- drivers/tty/synclinkmp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c index ff171384ea5..dc6e96996ea 100644 --- a/drivers/tty/synclinkmp.c +++ b/drivers/tty/synclinkmp.c @@ -3478,7 +3478,7 @@ static int alloc_buf_list(SLMP_INFO *info) for ( i = 0; i < info->rx_buf_count; i++ ) { /* calculate and store physical address of this buffer entry */ info->rx_buf_list_ex[i].phys_entry = - info->buffer_list_phys + (i * sizeof(SCABUFSIZE)); + info->buffer_list_phys + (i * SCABUFSIZE); /* calculate and store physical address of */ /* next entry in cirular list of entries */ -- cgit v1.2.3 From 258a9fd17b92552637bc74776c11737e0472dc86 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Henrik=20Nordstr=C3=B6m?= Date: Tue, 23 Jul 2013 21:06:07 +0200 Subject: tty/8250_early: Don't truncate last character of options The earlier change to use strlcpy uncovered a bug in the options argument length calculation causing last character to be truncated. This makes the actual console to be configured with incorrect baudrate when specifying the console using console=uart,... syntax. Bug symptom seen in kernel log output: Kernel command line: console=uart,mmio,0x90000000,115200 Early serial console at MMIO 0x90000000 (options '11520') which then results in a invalid baud rate 11520 instead of the expected 115200 when the console is switched to ttyS0 later in the boot process. Signed-off-by: Henrik Nordstrom Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/8250/8250_early.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/8250/8250_early.c b/drivers/tty/serial/8250/8250_early.c index 721904f8efa..946ddd2b3a5 100644 --- a/drivers/tty/serial/8250/8250_early.c +++ b/drivers/tty/serial/8250/8250_early.c @@ -193,7 +193,8 @@ static int __init parse_options(struct early_serial8250_device *device, if (options) { options++; device->baud = simple_strtoul(options, NULL, 0); - length = min(strcspn(options, " "), sizeof(device->options)); + length = min(strcspn(options, " ") + 1, + sizeof(device->options)); strlcpy(device->options, options, length); } else { device->baud = probe_baud(port); -- cgit v1.2.3 From 3bf5d350586d98eb28ab7f86ffbd66518ffd95d8 Mon Sep 17 00:00:00 2001 From: Richard Zhao Date: Sun, 21 Jul 2013 10:43:26 +0800 Subject: serial: tegra: correct help message in Kconfig from 'ttyHS' to 'ttyTHS' ttyTHS is consistent with the name used in driver. Signed-off-by: Richard Zhao Acked-by: Stephen Warren Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index 5e3d68917ff..1456673bcca 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -277,7 +277,7 @@ config SERIAL_TEGRA select SERIAL_CORE help Support for the on-chip UARTs on the NVIDIA Tegra series SOCs - providing /dev/ttyHS0, 1, 2, 3 and 4 (note, some machines may not + providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not provide all of these ports, depending on how the serial port are enabled). This driver uses the APB DMA to achieve higher baudrate and better performance. -- cgit v1.2.3 From 1fad56424f5ad3ce4973505a357212b2e2282b3f Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Fri, 28 Jun 2013 12:24:26 +0200 Subject: USB: ti_usb_3410_5052: fix dynamic-id matching The driver failed to take the dynamic ids into account when determining the device type and therefore all devices were detected as 2-port devices when using the dynamic-id interface. Match on the usb-serial-driver field instead of doing redundant id-table searches. Reported-by: Anders Hammarquist Cc: stable Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/ti_usb_3410_5052.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c index 7182bb774b7..375b5a400b6 100644 --- a/drivers/usb/serial/ti_usb_3410_5052.c +++ b/drivers/usb/serial/ti_usb_3410_5052.c @@ -371,7 +371,7 @@ static int ti_startup(struct usb_serial *serial) usb_set_serial_data(serial, tdev); /* determine device type */ - if (usb_match_id(serial->interface, ti_id_table_3410)) + if (serial->type == &ti_1port_device) tdev->td_is_3410 = 1; dev_dbg(&dev->dev, "%s - device type is %s\n", __func__, tdev->td_is_3410 ? "3410" : "5052"); -- cgit v1.2.3 From f82a3133c0c5625d54f3dd1621815b1cf77c8463 Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Wed, 24 Jul 2013 16:55:23 -0700 Subject: ARM: omap5: Only select errata 798181 if SMP MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Avoids the following warning when SMP is off: warning: (ARCH_KEYSTONE && SOC_OMAP5) selects ARM_ERRATA_798181 which has unmet direct dependencies (CPU_V7 && SMP) Reported-by: Emilio López Cc: Tony Lindgren Cc: Santosh Shilimkar Signed-off-by: Olof Johansson --- arch/arm/mach-omap2/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index 627fa7e41fb..3eed0006d18 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -62,7 +62,7 @@ config SOC_OMAP5 select HAVE_SMP select COMMON_CLK select HAVE_ARM_ARCH_TIMER - select ARM_ERRATA_798181 + select ARM_ERRATA_798181 if SMP config SOC_AM33XX bool "AM33XX support" -- cgit v1.2.3 From 63b5df963f52ccbab6fabedf05b7ac6b465789a4 Mon Sep 17 00:00:00 2001 From: Enrico Mioso Date: Thu, 25 Jul 2013 02:01:39 +0200 Subject: usb: serial: option: Add ONYX 3G device support This patch adds support for the ONYX 3G device (version 1) from ALFA NETWORK. Signed-off-by: Enrico Mioso Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index bd02f257de1..43093850045 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -783,6 +783,7 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC650) }, { USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_PRODUCT_KPC680) }, { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */ + { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x0023)}, /* ONYX 3G device */ { USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000)}, /* SIMCom SIM5218 */ { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6280) }, /* BP3-USB & BP3-EXT HSDPA */ { USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6008) }, -- cgit v1.2.3 From 9b0ee8cf70457520c144e944bcf8df2324bad880 Mon Sep 17 00:00:00 2001 From: Tsugikazu Shibata Date: Thu, 25 Jul 2013 09:17:23 +0900 Subject: HOWTO ja_JP sync Attached is Documentation/ja_JP/HOWTO sync patch for 3.10. This patch was reviewed by Japanese translation community called JF. Signed-off-by: Tsugikazu Shibata Signed-off-by: Greg Kroah-Hartman --- Documentation/ja_JP/HOWTO | 44 ++++++++++++++++++++++---------------------- 1 file changed, 22 insertions(+), 22 deletions(-) diff --git a/Documentation/ja_JP/HOWTO b/Documentation/ja_JP/HOWTO index 050d37fe6d4..8148a47fc70 100644 --- a/Documentation/ja_JP/HOWTO +++ b/Documentation/ja_JP/HOWTO @@ -11,14 +11,14 @@ for non English (read: Japanese) speakers and is not intended as a fork. So if you have any comments or updates for this file, please try to update the original English file first. -Last Updated: 2011/03/31 +Last Updated: 2013/07/19 ================================== これは、 -linux-2.6.38/Documentation/HOWTO +linux-3.10/Documentation/HOWTO の和訳です。 -翻訳団体： JF プロジェクト < http://www.linux.or.jp/JF/ > -翻訳日： 2011/3/28 +翻訳団体： JF プロジェクト < http://linuxjf.sourceforge.jp/ > +翻訳日： 2013/7/19 翻訳者： Tsugikazu Shibata 校正者： 松倉さん 小林 雅典さん (Masanori Kobayasi) @@ -245,7 +245,7 @@ Linux カーネルソースツリーの中に含まれる、きれいにし、 自己参照方式で、索引がついた web 形式で、ソースコードを参照することが できます。この最新の素晴しいカーネルコードのリポジトリは以下で見つかり ます- - http://sosdg.org/~qiyong/lxr/ + http://lxr.linux.no/+trees 開発プロセス ----------------------- @@ -253,24 +253,24 @@ Linux カーネルソースツリーの中に含まれる、きれいにし、 Linux カーネルの開発プロセスは現在幾つかの異なるメインカーネル「ブラン チ」と多数のサブシステム毎のカーネルブランチから構成されます。 これらのブランチとは- - - メインの 2.6.x カーネルツリー - - 2.6.x.y -stable カーネルツリー - - 2.6.x -git カーネルパッチ + - メインの 3.x カーネルツリー + - 3.x.y -stable カーネルツリー + - 3.x -git カーネルパッチ - サブシステム毎のカーネルツリーとパッチ - - 統合テストのための 2.6.x -next カーネルツリー + - 統合テストのための 3.x -next カーネルツリー -2.6.x カーネルツリー +3.x カーネルツリー ----------------- -2.6.x カーネルは Linus Torvalds によってメンテナンスされ、kernel.org -の pub/linux/kernel/v2.6/ ディレクトリに存在します。この開発プロセスは +3.x カーネルは Linus Torvalds によってメンテナンスされ、kernel.org +の pub/linux/kernel/v3.x/ ディレクトリに存在します。この開発プロセスは 以下のとおり- - 新しいカーネルがリリースされた直後に、2週間の特別期間が設けられ、 この期間中に、メンテナ達は Linus に大きな差分を送ることができます。 このような差分は通常 -next カーネルに数週間含まれてきたパッチです。 大きな変更は git(カーネルのソース管理ツール、詳細は - http://git-scm.com/ 参照) を使って送るのが好ましいやり方ですが、パッ + http://git-scm.com/ 参照) を使って送るのが好ましいやり方ですが、パッ チファイルの形式のまま送るのでも十分です。 - 2週間後、-rc1 カーネルがリリースされ、この後にはカーネル全体の安定 @@ -302,20 +302,20 @@ Andrew Morton が Linux-kernel メーリングリストにカーネルリリー 実に認識されたバグの状況によりリリースされるのであり、前もって決めら れた計画によってリリースされるものではないからです。」 -2.6.x.y -stable カーネルツリー +3.x.y -stable カーネルツリー --------------------------- -バージョン番号が4つの数字に分かれているカーネルは -stable カーネルです。 -これには、2.6.x カーネルで見つかったセキュリティ問題や重大な後戻りに対 +バージョン番号が3つの数字に分かれているカーネルは -stable カーネルです。 +これには、3.x カーネルで見つかったセキュリティ問題や重大な後戻りに対 する比較的小さい重要な修正が含まれます。 これは、開発/実験的バージョンのテストに協力することに興味が無く、 最新の安定したカーネルを使いたいユーザに推奨するブランチです。 -もし、2.6.x.y カーネルが存在しない場合には、番号が一番大きい 2.6.x が +もし、3.x.y カーネルが存在しない場合には、番号が一番大きい 3.x が 最新の安定版カーネルです。 -2.6.x.y は "stable" チーム でメンテされており、必 +3.x.y は "stable" チーム でメンテされており、必 要に応じてリリースされます。通常のリリース期間は 2週間毎ですが、差し迫っ た問題がなければもう少し長くなることもあります。セキュリティ関連の問題 の場合はこれに対してだいたいの場合、すぐにリリースがされます。 @@ -324,7 +324,7 @@ Andrew Morton が Linux-kernel メーリングリストにカーネルリリー イルにはどのような種類の変更が -stable ツリーに受け入れ可能か、またリ リースプロセスがどう動くかが記述されています。 -2.6.x -git パッチ +3.x -git パッチ ------------------ git リポジトリで管理されているLinus のカーネルツリーの毎日のスナップ @@ -358,14 +358,14 @@ quilt シリーズとして公開されているパッチキューも使われ をつけることができます。大部分のこれらの patchwork のサイトは http://patchwork.kernel.org/ でリストされています。 -統合テストのための 2.6.x -next カーネルツリー +統合テストのための 3.x -next カーネルツリー --------------------------------------------- -サブシステムツリーの更新内容がメインラインの 2.6.x ツリーにマージされ +サブシステムツリーの更新内容がメインラインの 3.x ツリーにマージされ る前に、それらは統合テストされる必要があります。この目的のため、実質的 に全サブシステムツリーからほぼ毎日プルされてできる特別なテスト用のリ ポジトリが存在します- - http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git + http://git.kernel.org/?p=linux/kernel/git/next/linux-next.git http://linux.f-seidel.de/linux-next/pmwiki/ このやり方によって、-next カーネルは次のマージ機会でどんなものがメイン -- cgit v1.2.3 From 0eb25bb027a100f5a9df8991f2f628e7d851bc1e Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 24 Jul 2013 15:37:42 +1000 Subject: md/raid10: remove use-after-free bug. We always need to be careful when calling generic_make_request, as it can start a chain of events which might free something that we are using. Here is one place I wasn't careful enough. If the wbio2 is not in use, then it might get freed at the first generic_make_request call. So perform all necessary tests first. This bug was introduced in 3.3-rc3 (24afd80d99) and can cause an oops, so fix is suitable for any -stable since then. Cc: stable@vger.kernel.org (3.3+) Signed-off-by: NeilBrown --- drivers/md/raid10.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 957a719e8c2..df7b0a06b0e 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2290,12 +2290,18 @@ static void recovery_request_write(struct mddev *mddev, struct r10bio *r10_bio) d = r10_bio->devs[1].devnum; wbio = r10_bio->devs[1].bio; wbio2 = r10_bio->devs[1].repl_bio; + /* Need to test wbio2->bi_end_io before we call + * generic_make_request as if the former is NULL, + * the latter is free to free wbio2. + */ + if (wbio2 && !wbio2->bi_end_io) + wbio2 = NULL; if (wbio->bi_end_io) { atomic_inc(&conf->mirrors[d].rdev->nr_pending); md_sync_acct(conf->mirrors[d].rdev->bdev, bio_sectors(wbio)); generic_make_request(wbio); } - if (wbio2 && wbio2->bi_end_io) { + if (wbio2) { atomic_inc(&conf->mirrors[d].replacement->nr_pending); md_sync_acct(conf->mirrors[d].replacement->bdev, bio_sectors(wbio2)); -- cgit v1.2.3 From f94c0b6658c7edea8bc19d13be321e3860a3fa54 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Mon, 22 Jul 2013 12:57:21 +1000 Subject: md/raid5: fix interaction of 'replace' and 'recovery'. If a device in a RAID4/5/6 is being replaced while another is being recovered, then the writes to the replacement device currently don't happen, resulting in corruption when the replacement completes and the new drive takes over. This is because the replacement writes are only triggered when 's.replacing' is set and not when the similar 's.sync' is set (which is the case during resync and recovery - it means all devices need to be read). So schedule those writes when s.replacing is set as well. In this case we cannot use "STRIPE_INSYNC" to record that the replacement has happened as that is needed for recording that any parity calculation is complete. So introduce STRIPE_REPLACED to record if the replacement has happened. For safety we should also check that STRIPE_COMPUTE_RUN is not set. This has a similar effect to the "s.locked == 0" test. The latter ensure that now IO has been flagged but not started. The former checks if any parity calculation has been flagged by not started. We must wait for both of these to complete before triggering the 'replace'. Add a similar test to the subsequent check for "are we finished yet". This possibly isn't needed (is subsumed in the STRIPE_INSYNC test), but it makes it more obvious that the REPLACE will happen before we think we are finished. Finally if a NeedReplace device is not UPTODATE then that is an error. We really must trigger a warning. This bug was introduced in commit 9a3e1101b827a59ac9036a672f5fa8d5279d0fe2 (md/raid5: detect and handle replacements during recovery.) which introduced replacement for raid5. That was in 3.3-rc3, so any stable kernel since then would benefit from this fix. Cc: stable@vger.kernel.org (3.3+) Reported-by: qindehua <13691222965@163.com> Tested-by: qindehua Signed-off-by: NeilBrown --- drivers/md/raid5.c | 15 ++++++++++----- drivers/md/raid5.h | 1 + 2 files changed, 11 insertions(+), 5 deletions(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 2bf094a587c..78ea44336e7 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3462,6 +3462,7 @@ static void handle_stripe(struct stripe_head *sh) test_and_clear_bit(STRIPE_SYNC_REQUESTED, &sh->state)) { set_bit(STRIPE_SYNCING, &sh->state); clear_bit(STRIPE_INSYNC, &sh->state); + clear_bit(STRIPE_REPLACED, &sh->state); } spin_unlock(&sh->stripe_lock); } @@ -3607,19 +3608,23 @@ static void handle_stripe(struct stripe_head *sh) handle_parity_checks5(conf, sh, &s, disks); } - if (s.replacing && s.locked == 0 - && !test_bit(STRIPE_INSYNC, &sh->state)) { + if ((s.replacing || s.syncing) && s.locked == 0 + && !test_bit(STRIPE_COMPUTE_RUN, &sh->state) + && !test_bit(STRIPE_REPLACED, &sh->state)) { /* Write out to replacement devices where possible */ for (i = 0; i < conf->raid_disks; i++) - if (test_bit(R5_UPTODATE, &sh->dev[i].flags) && - test_bit(R5_NeedReplace, &sh->dev[i].flags)) { + if (test_bit(R5_NeedReplace, &sh->dev[i].flags)) { + WARN_ON(!test_bit(R5_UPTODATE, &sh->dev[i].flags)); set_bit(R5_WantReplace, &sh->dev[i].flags); set_bit(R5_LOCKED, &sh->dev[i].flags); s.locked++; } - set_bit(STRIPE_INSYNC, &sh->state); + if (s.replacing) + set_bit(STRIPE_INSYNC, &sh->state); + set_bit(STRIPE_REPLACED, &sh->state); } if ((s.syncing || s.replacing) && s.locked == 0 && + !test_bit(STRIPE_COMPUTE_RUN, &sh->state) && test_bit(STRIPE_INSYNC, &sh->state)) { md_done_sync(conf->mddev, STRIPE_SECTORS, 1); clear_bit(STRIPE_SYNCING, &sh->state); diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h index b0b663b119a..70c49329ca9 100644 --- a/drivers/md/raid5.h +++ b/drivers/md/raid5.h @@ -306,6 +306,7 @@ enum { STRIPE_SYNC_REQUESTED, STRIPE_SYNCING, STRIPE_INSYNC, + STRIPE_REPLACED, STRIPE_PREREAD_ACTIVE, STRIPE_DELAYED, STRIPE_DEGRADED, -- cgit v1.2.3 From 14c5cec5d0cd73e7e9d4fbea2bbfeea8f3ade871 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Thu, 25 Jul 2013 12:44:34 +0300 Subject: drm/i915: initialize gt_lock early with other spin locks commit 181d1b9e31c668259d3798c521672afb8edd355c Author: Daniel Vetter Date: Sun Jul 21 13:16:24 2013 +0200 drm/i915: fix up gt init sequence fallout moved dev_priv->gt_lock initialization after use. Do the initialization much earlier with other spin lock initializations. Reported-by: Sedat Dilek Signed-off-by: Jani Nikula Tested-by: Sedat Dilek Cc: stable@vger.kernel.org (since the regressing patch is also cc: stable) Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_dma.c | 1 + drivers/gpu/drm/i915/intel_pm.c | 2 -- 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index 67ec54f67af..b1520682cb2 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1498,6 +1498,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) spin_lock_init(&dev_priv->irq_lock); spin_lock_init(&dev_priv->gpu_error.lock); spin_lock_init(&dev_priv->rps.lock); + spin_lock_init(&dev_priv->gt_lock); spin_lock_init(&dev_priv->backlight.lock); mutex_init(&dev_priv->dpio_lock); mutex_init(&dev_priv->rps.hw_lock); diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 6a347f54d39..51a2a60f5bf 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -5497,8 +5497,6 @@ void intel_gt_init(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; - spin_lock_init(&dev_priv->gt_lock); - if (IS_VALLEYVIEW(dev)) { dev_priv->gt.force_wake_get = vlv_force_wake_get; dev_priv->gt.force_wake_put = vlv_force_wake_put; -- cgit v1.2.3 From 203a86613fb3bf2767335659513fa98563a3eb71 Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Wed, 24 Jul 2013 10:27:13 -0700 Subject: xhci: Avoid NULL pointer deref when host dies. When the host controller fails to respond to an Enable Slot command, and the host fails to respond to the register write to abort the command ring, the xHCI driver will assume the host is dead, and call usb_hc_died(). The USB device's slot_id is still set to zero, and the pointer stored at xhci->devs[0] will always be NULL. The call to xhci_check_args in xhci_free_dev should have caught the NULL virt_dev pointer. However, xhci_free_dev is designed to free the xhci_virt_device structures, even if the host is dead, so that we don't leak kernel memory. xhci_free_dev checks the return value from the generic xhci_check_args function. If the return value is -ENODEV, it carries on trying to free the virtual device. The issue is that xhci_check_args looks at the host controller state before it looks at the xhci_virt_device pointer. It will return -ENIVAL because the host is dead, and xhci_free_dev will ignore the return value, and happily dereference the NULL xhci_virt_device pointer. The fix is to make sure that xhci_check_args checks the xhci_virt_device pointer before it checks the host state. See https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1203453 for further details. This patch doesn't solve the underlying issue, but will ensure we don't see any more NULL pointer dereferences because of the issue. This patch should be backported to kernels as old as 3.1, that contain the commit 7bd89b4017f46a9b92853940fd9771319acb578a "xhci: Don't submit commands or URBs to halted hosts." Signed-off-by: Sarah Sharp Reported-by: Vincent Thiele Cc: stable@vger.kernel.org --- drivers/usb/host/xhci.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 2c49f00260c..98aac742a2c 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1181,9 +1181,6 @@ static int xhci_check_args(struct usb_hcd *hcd, struct usb_device *udev, } xhci = hcd_to_xhci(hcd); - if (xhci->xhc_state & XHCI_STATE_HALTED) - return -ENODEV; - if (check_virt_dev) { if (!udev->slot_id || !xhci->devs[udev->slot_id]) { printk(KERN_DEBUG "xHCI %s called with unaddressed " @@ -1199,6 +1196,9 @@ static int xhci_check_args(struct usb_hcd *hcd, struct usb_device *udev, } } + if (xhci->xhc_state & XHCI_STATE_HALTED) + return -ENODEV; + return 1; } -- cgit v1.2.3 From d5c82feb5cf8026cd4af048330fdcd46e861c686 Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Tue, 23 Jul 2013 11:58:20 -0700 Subject: usb: xhci: Mark two functions __maybe_unused Resolves the following build warnings: drivers/usb/host/xhci.c:332:13: warning: 'xhci_msix_sync_irqs' defined but not used [-Wunused-function] drivers/usb/host/xhci.c:3901:12: warning: 'xhci_change_max_exit_latency' defined but not used [-Wunused-function] These functions are not always used, and since they're marked static they will produce build warnings: - xhci_msix_sync_irqs is only used with CONFIG_PCI. - xhci_change_max_exit_latency is a little more complicated with dependencies on CONFIG_PM and CONFIG_PM_RUNTIME. Instead of building a bigger maze of ifdefs in this code, I've just marked both with __maybe_unused. Signed-off-by: Olof Johansson Signed-off-by: Sarah Sharp --- drivers/usb/host/xhci.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 98aac742a2c..6bbf511645e 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -329,7 +329,7 @@ static void xhci_cleanup_msix(struct xhci_hcd *xhci) return; } -static void xhci_msix_sync_irqs(struct xhci_hcd *xhci) +static void __maybe_unused xhci_msix_sync_irqs(struct xhci_hcd *xhci) { int i; @@ -3898,7 +3898,7 @@ int xhci_find_raw_port_number(struct usb_hcd *hcd, int port1) * Issue an Evaluate Context command to change the Maximum Exit Latency in the * slot context. If that succeeds, store the new MEL in the xhci_virt_device. */ -static int xhci_change_max_exit_latency(struct xhci_hcd *xhci, +static int __maybe_unused xhci_change_max_exit_latency(struct xhci_hcd *xhci, struct usb_device *udev, u16 max_exit_latency) { struct xhci_virt_device *virt_dev; -- cgit v1.2.3 From c4d949b76f2c714e0da20c53252e586e8127ac79 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 23 Jul 2013 15:22:59 -0700 Subject: usb: fix build warning in pci-quirks.h when CONFIG_PCI is not enabled Fix warning when CONFIG_PCI is not enabled (from commit 296365781903226a3fb8758901eaeec09d2798e4). drivers/usb/host/pci-quirks.h: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] Signed-off-by: Randy Dunlap Reported-by: Geert Uytterhoeven Cc: Moiz Sonasath Signed-off-by: Sarah Sharp --- drivers/usb/host/pci-quirks.h | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/host/pci-quirks.h b/drivers/usb/host/pci-quirks.h index 4b8a2092432..978c849f9c9 100644 --- a/drivers/usb/host/pci-quirks.h +++ b/drivers/usb/host/pci-quirks.h @@ -13,6 +13,7 @@ void usb_enable_xhci_ports(struct pci_dev *xhci_pdev); void usb_disable_xhci_ports(struct pci_dev *xhci_pdev); void sb800_prefetch(struct device *dev, int on); #else +struct pci_dev; static inline void usb_amd_quirk_pll_disable(void) {} static inline void usb_amd_quirk_pll_enable(void) {} static inline void usb_amd_dev_put(void) {} -- cgit v1.2.3 From 07f3cb7c28bf3f4dd80bfb136cf45810c46ac474 Mon Sep 17 00:00:00 2001 From: George Cherian Date: Mon, 1 Jul 2013 10:59:12 +0530 Subject: usb: host: xhci: Enable XHCI_SPURIOUS_SUCCESS for all controllers with xhci 1.0 Xhci controllers with hci_version > 0.96 gives spurious success events on short packet completion. During webcam capture the "ERROR Transfer event TRB DMA ptr not part of current TD" was observed. The same application works fine with synopsis controllers hci_version 0.96. The same issue is seen with Intel Pantherpoint xhci controller. So enabling this quirk in xhci_gen_setup if controller verion is greater than 0.96. For xhci-pci move the quirk to much generic place xhci_gen_setup. Note from Sarah: The xHCI 1.0 spec changed how hardware handles short packets. The HW will notify SW of the TRB where the short packet occurred, and it will also give a successful status for the last TRB in a TD (the one with the IOC flag set). On the second successful status, that warning will be triggered in the driver. Software is now supposed to not assume the TD is not completed until it gets that last successful status. That means we have a slight race condition, although it should have little practical impact. This patch papers over that issue. It's on my long-term to-do list to fix this race condition, but it is a much more involved patch that will probably be too big for stable. This patch is needed for stable to avoid serious log spam. This patch should be backported to kernels as old as 3.0, that contain the commit ad808333d8201d53075a11bc8dd83b81f3d68f0b "Intel xhci: Ignore spurious successful event." The patch will have to be modified for kernels older than 3.2, since that kernel added the xhci_gen_setup function for xhci platform devices. The correct conflict resolution for kernels older than 3.2 is to set XHCI_SPURIOUS_SUCCESS in xhci_pci_quirks for all xHCI 1.0 hosts. Signed-off-by: George Cherian Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org --- drivers/usb/host/xhci-pci.c | 1 - drivers/usb/host/xhci.c | 7 +++++++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index cc24e39b97d..f00cb203fae 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -93,7 +93,6 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) } if (pdev->vendor == PCI_VENDOR_ID_INTEL && pdev->device == PCI_DEVICE_ID_INTEL_PANTHERPOINT_XHCI) { - xhci->quirks |= XHCI_SPURIOUS_SUCCESS; xhci->quirks |= XHCI_EP_LIMIT_QUIRK; xhci->limit_active_eps = 64; xhci->quirks |= XHCI_SW_BW_CHECKING; diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 6bbf511645e..41eb4fc3345 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -4892,6 +4892,13 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) get_quirks(dev, xhci); + /* In xhci controllers which follow xhci 1.0 spec gives a spurious + * success event after a short transfer. This quirk will ignore such + * spurious event. + */ + if (xhci->hci_version > 0x96) + xhci->quirks |= XHCI_SPURIOUS_SUCCESS; + /* Make sure the HC is halted. */ retval = xhci_halt(xhci); if (retval) -- cgit v1.2.3 From d66eaf9f89502971fddcb0de550b01fa6f409d83 Mon Sep 17 00:00:00 2001 From: Oleksij Rempel Date: Sun, 21 Jul 2013 15:36:19 +0200 Subject: xhci: fix null pointer dereference on ring_doorbell_for_active_rings in some cases where device is attched to xhci port and do not responding, for example ath9k_htc with stalled firmware, kernel will crash on ring_doorbell_for_active_rings. This patch check if pointer exist before it is used. This patch should be backported to kernels as old as 2.6.35, that contain the commit e9df17eb1408cfafa3d1844bfc7f22c7237b31b8 "USB: xhci: Correct assumptions about number of rings per endpoint" Signed-off-by: Oleksij Rempel Signed-off-by: Sarah Sharp Cc: stable@vger.kernel.org --- drivers/usb/host/xhci-ring.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 1e57eafa691..5b08cd85f8e 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -434,7 +434,7 @@ static void ring_doorbell_for_active_rings(struct xhci_hcd *xhci, /* A ring has pending URBs if its TD list is not empty */ if (!(ep->ep_state & EP_HAS_STREAMS)) { - if (!(list_empty(&ep->ring->td_list))) + if (ep->ring && !(list_empty(&ep->ring->td_list))) xhci_ring_ep_doorbell(xhci, slot_id, ep_index, 0); return; } -- cgit v1.2.3 From db6c2c69c27f2c4fd1e2a1c6b0b1119b1e885f8a Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 23 Jul 2013 01:43:20 +0200 Subject: pinctrl: fix a memleak when freeing maps We forgot to free the node itself when free:ing a map. Reported-by: xulinuxkernel Reviewed-by: Stephen Warren Signed-off-by: Linus Walleij --- drivers/pinctrl/core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c index 5b272bfd261..2a00239661b 100644 --- a/drivers/pinctrl/core.c +++ b/drivers/pinctrl/core.c @@ -1193,6 +1193,7 @@ void pinctrl_unregister_map(struct pinctrl_map const *map) list_for_each_entry(maps_node, &pinctrl_maps, node) { if (maps_node->maps == map) { list_del(&maps_node->node); + kfree(maps_node); mutex_unlock(&pinctrl_maps_mutex); return; } -- cgit v1.2.3 From e1b4271ac261b290fdab51446996fb13e68a57be Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Wed, 24 Jul 2013 15:47:30 +1000 Subject: xfs: di_flushiter considered harmful When we made all inode updates transactional, we no longer needed the log recovery detection for inodes being newer on disk than the transaction being replayed - it was redundant as replay of the log would always result in the latest version of the inode would be on disk. It was redundant, but left in place because it wasn't considered to be a problem. However, with the new "don't read inodes on create" optimisation, flushiter has come back to bite us. Essentially, the optimisation made always initialises flushiter to zero in the create transaction, and so if we then crash and run recovery and the inode already on disk has a non-zero flushiter it will skip recovery of that inode. As a result, log recovery does the wrong thing and we end up with a corrupt filesystem. Because we have to support old kernel to new kernel upgrades, we can't just get rid of the flushiter support in log recovery as we might be upgrading from a kernel that doesn't have fully transactional inode updates. Unfortunately, for v4 superblocks there is no way to guarantee that log recovery knows about this fact. We cannot add a new inode format flag to say it's a "special inode create" because it won't be understood by older kernels and so recovery could do the wrong thing on downgrade. We cannot specially detect the combination of zero mode/non-zero flushiter on disk to non-zero mode, zero flushiter in the log item during recovery because wrapping of the flushiter can result in false detection. Hence that makes this "don't use flushiter" optimisation limited to a disk format that guarantees that we don't need it. And that means the only fix here is to limit the "no read IO on create" optimisation to version 5 superblocks.... Reported-by: Markus Trippelsdorf Signed-off-by: Dave Chinner Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers (cherry picked from commit e60896d8f2b81412421953e14d3feb14177edb56) --- fs/xfs/xfs_dinode.h | 3 +++ fs/xfs/xfs_inode.c | 31 ++++++++++++++++++++++--------- fs/xfs/xfs_log_recover.c | 13 +++++++++++-- 3 files changed, 36 insertions(+), 11 deletions(-) diff --git a/fs/xfs/xfs_dinode.h b/fs/xfs/xfs_dinode.h index 07d735a80a0..e5869b50dc4 100644 --- a/fs/xfs/xfs_dinode.h +++ b/fs/xfs/xfs_dinode.h @@ -39,6 +39,9 @@ typedef struct xfs_timestamp { * There is a very similar struct icdinode in xfs_inode which matches the * layout of the first 96 bytes of this structure, but is kept in native * format instead of big endian. + * + * Note: di_flushiter is only used by v1/2 inodes - it's effectively a zeroed + * padding field for v3 inodes. */ typedef struct xfs_dinode { __be16 di_magic; /* inode magic # = XFS_DINODE_MAGIC */ diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index b78481f99d9..bb262c25c8d 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -896,7 +896,6 @@ xfs_dinode_to_disk( to->di_projid_lo = cpu_to_be16(from->di_projid_lo); to->di_projid_hi = cpu_to_be16(from->di_projid_hi); memcpy(to->di_pad, from->di_pad, sizeof(to->di_pad)); - to->di_flushiter = cpu_to_be16(from->di_flushiter); to->di_atime.t_sec = cpu_to_be32(from->di_atime.t_sec); to->di_atime.t_nsec = cpu_to_be32(from->di_atime.t_nsec); to->di_mtime.t_sec = cpu_to_be32(from->di_mtime.t_sec); @@ -924,6 +923,9 @@ xfs_dinode_to_disk( to->di_lsn = cpu_to_be64(from->di_lsn); memcpy(to->di_pad2, from->di_pad2, sizeof(to->di_pad2)); uuid_copy(&to->di_uuid, &from->di_uuid); + to->di_flushiter = 0; + } else { + to->di_flushiter = cpu_to_be16(from->di_flushiter); } } @@ -1029,10 +1031,14 @@ xfs_dinode_calc_crc( /* * Read the disk inode attributes into the in-core inode structure. * - * If we are initialising a new inode and we are not utilising the - * XFS_MOUNT_IKEEP inode cluster mode, we can simple build the new inode core - * with a random generation number. If we are keeping inodes around, we need to - * read the inode cluster to get the existing generation number off disk. + * For version 5 superblocks, if we are initialising a new inode and we are not + * utilising the XFS_MOUNT_IKEEP inode cluster mode, we can simple build the new + * inode core with a random generation number. If we are keeping inodes around, + * we need to read the inode cluster to get the existing generation number off + * disk. Further, if we are using version 4 superblocks (i.e. v1/v2 inode + * format) then log recovery is dependent on the di_flushiter field being + * initialised from the current on-disk value and hence we must also read the + * inode off disk. */ int xfs_iread( @@ -1054,6 +1060,7 @@ xfs_iread( /* shortcut IO on inode allocation if possible */ if ((iget_flags & XFS_IGET_CREATE) && + xfs_sb_version_hascrc(&mp->m_sb) && !(mp->m_flags & XFS_MOUNT_IKEEP)) { /* initialise the on-disk inode core */ memset(&ip->i_d, 0, sizeof(ip->i_d)); @@ -2882,12 +2889,18 @@ xfs_iflush_int( __func__, ip->i_ino, ip->i_d.di_forkoff, ip); goto corrupt_out; } + /* - * bump the flush iteration count, used to detect flushes which - * postdate a log record during recovery. This is redundant as we now - * log every change and hence this can't happen. Still, it doesn't hurt. + * Inode item log recovery for v1/v2 inodes are dependent on the + * di_flushiter count for correct sequencing. We bump the flush + * iteration count so we can detect flushes which postdate a log record + * during recovery. This is redundant as we now log every change and + * hence this can't happen but we need to still do it to ensure + * backwards compatibility with old kernels that predate logging all + * inode changes. */ - ip->i_d.di_flushiter++; + if (ip->i_d.di_version < 3) + ip->i_d.di_flushiter++; /* * Copy the dirty parts of the inode into the on-disk diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index 6fcc910a50b..7681b19aa5d 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -2592,8 +2592,16 @@ xlog_recover_inode_pass2( goto error; } - /* Skip replay when the on disk inode is newer than the log one */ - if (dicp->di_flushiter < be16_to_cpu(dip->di_flushiter)) { + /* + * di_flushiter is only valid for v1/2 inodes. All changes for v3 inodes + * are transactional and if ordering is necessary we can determine that + * more accurately by the LSN field in the V3 inode core. Don't trust + * the inode versions we might be changing them here - use the + * superblock flag to determine whether we need to look at di_flushiter + * to skip replay when the on disk inode is newer than the log one + */ + if (!xfs_sb_version_hascrc(&mp->m_sb) && + dicp->di_flushiter < be16_to_cpu(dip->di_flushiter)) { /* * Deal with the wrap case, DI_MAX_FLUSH is less * than smaller numbers @@ -2608,6 +2616,7 @@ xlog_recover_inode_pass2( goto error; } } + /* Take the opportunity to reset the flush iteration count */ dicp->di_flushiter = 0; -- cgit v1.2.3 From 3d1a69e726406ab662ab88fa30a3a05ed404334d Mon Sep 17 00:00:00 2001 From: Enrico Mioso Date: Sat, 29 Jun 2013 15:33:35 +0200 Subject: usb: serial: option: blacklist ONDA MT689DC QMI interface Prevent the option driver from binding itself to the QMI/WWAN interface, making it unusable by the proper driver. Signed-off-by: enrico Mioso Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 43093850045..085da5f210e 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -819,7 +819,8 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0017, 0xff, 0xff, 0xff), .driver_info = (kernel_ulong_t)&net_intf3_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0018, 0xff, 0xff, 0xff) }, - { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0019, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0019, 0xff, 0xff, 0xff), + .driver_info = (kernel_ulong_t)&net_intf3_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0020, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0021, 0xff, 0xff, 0xff), .driver_info = (kernel_ulong_t)&net_intf4_blacklist }, -- cgit v1.2.3 From 4cf76df06ecc852633ed927d91e01c83c33bc331 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Wed, 10 Jul 2013 12:25:02 -0500 Subject: usb: serial: option: add Olivetti Olicard 200 Speaks AT on interfaces 5 (command & PPP) and 3 (secondary), other interface protocols are unknown. Signed-off-by: Dan Williams Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 085da5f210e..083b3e90289 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -341,6 +341,7 @@ static void option_instat_callback(struct urb *urb); #define OLIVETTI_VENDOR_ID 0x0b3c #define OLIVETTI_PRODUCT_OLICARD100 0xc000 #define OLIVETTI_PRODUCT_OLICARD145 0xc003 +#define OLIVETTI_PRODUCT_OLICARD200 0xc005 /* Celot products */ #define CELOT_VENDOR_ID 0x211f @@ -1259,6 +1260,7 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD100) }, { USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD145) }, + { USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD200) }, { USB_DEVICE(CELOT_VENDOR_ID, CELOT_PRODUCT_CT680M) }, /* CT-650 CDMA 450 1xEVDO modem */ { USB_DEVICE(ONDA_VENDOR_ID, ONDA_MT825UP) }, /* ONDA MT825UP modem */ { USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_GT_B3730, USB_CLASS_CDC_DATA, 0x00, 0x00) }, /* Samsung GT-B3730 LTE USB modem.*/ -- cgit v1.2.3 From 878c69aae986ae97084458c0183a8c0a059865b1 Mon Sep 17 00:00:00 2001 From: Enrico Mioso Date: Sat, 13 Jul 2013 18:54:14 +0200 Subject: usb: serial: option.c: remove ONDA MT825UP product ID fromdriver Some (very few) early devices like mine, where not exposting a proper CDC descriptor. This was fixed with an immediate firmware update from the vendor, and pre-installed on newer devices. So actual devices can be driven by cdc_acm.c + cdc_ether.c. Signed-off-by: Enrico Mioso Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 083b3e90289..1cf6f125f5f 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -347,12 +347,6 @@ static void option_instat_callback(struct urb *urb); #define CELOT_VENDOR_ID 0x211f #define CELOT_PRODUCT_CT680M 0x6801 -/* ONDA Communication vendor id */ -#define ONDA_VENDOR_ID 0x1ee8 - -/* ONDA MT825UP HSDPA 14.2 modem */ -#define ONDA_MT825UP 0x000b - /* Samsung products */ #define SAMSUNG_VENDOR_ID 0x04e8 #define SAMSUNG_PRODUCT_GT_B3730 0x6889 @@ -1262,7 +1256,6 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD145) }, { USB_DEVICE(OLIVETTI_VENDOR_ID, OLIVETTI_PRODUCT_OLICARD200) }, { USB_DEVICE(CELOT_VENDOR_ID, CELOT_PRODUCT_CT680M) }, /* CT-650 CDMA 450 1xEVDO modem */ - { USB_DEVICE(ONDA_VENDOR_ID, ONDA_MT825UP) }, /* ONDA MT825UP modem */ { USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, SAMSUNG_PRODUCT_GT_B3730, USB_CLASS_CDC_DATA, 0x00, 0x00) }, /* Samsung GT-B3730 LTE USB modem.*/ { USB_DEVICE(YUGA_VENDOR_ID, YUGA_PRODUCT_CEM600) }, { USB_DEVICE(YUGA_VENDOR_ID, YUGA_PRODUCT_CEM610) }, -- cgit v1.2.3 From 5f8a2e68b679b41cc8e9b642f2f5aa45dd678641 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 1 Jul 2013 14:03:33 +0200 Subject: USB: mos7840: fix memory leak in open Allocated urbs and buffers were never freed on errors in open. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/mos7840.c | 25 +++++++++++++++++-------- 1 file changed, 17 insertions(+), 8 deletions(-) diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c index 0a818b23850..603fb70dde8 100644 --- a/drivers/usb/serial/mos7840.c +++ b/drivers/usb/serial/mos7840.c @@ -905,20 +905,20 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port) status = mos7840_get_reg_sync(port, mos7840_port->SpRegOffset, &Data); if (status < 0) { dev_dbg(&port->dev, "Reading Spreg failed\n"); - return -1; + goto err; } Data |= 0x80; status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset, Data); if (status < 0) { dev_dbg(&port->dev, "writing Spreg failed\n"); - return -1; + goto err; } Data &= ~0x80; status = mos7840_set_reg_sync(port, mos7840_port->SpRegOffset, Data); if (status < 0) { dev_dbg(&port->dev, "writing Spreg failed\n"); - return -1; + goto err; } /* End of block to be checked */ @@ -927,7 +927,7 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port) &Data); if (status < 0) { dev_dbg(&port->dev, "Reading Controlreg failed\n"); - return -1; + goto err; } Data |= 0x08; /* Driver done bit */ Data |= 0x20; /* rx_disable */ @@ -935,7 +935,7 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port) mos7840_port->ControlRegOffset, Data); if (status < 0) { dev_dbg(&port->dev, "writing Controlreg failed\n"); - return -1; + goto err; } /* do register settings here */ /* Set all regs to the device default values. */ @@ -946,21 +946,21 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port) status = mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data); if (status < 0) { dev_dbg(&port->dev, "disabling interrupts failed\n"); - return -1; + goto err; } /* Set FIFO_CONTROL_REGISTER to the default value */ Data = 0x00; status = mos7840_set_uart_reg(port, FIFO_CONTROL_REGISTER, Data); if (status < 0) { dev_dbg(&port->dev, "Writing FIFO_CONTROL_REGISTER failed\n"); - return -1; + goto err; } Data = 0xcf; status = mos7840_set_uart_reg(port, FIFO_CONTROL_REGISTER, Data); if (status < 0) { dev_dbg(&port->dev, "Writing FIFO_CONTROL_REGISTER failed\n"); - return -1; + goto err; } Data = 0x03; @@ -1103,6 +1103,15 @@ static int mos7840_open(struct tty_struct *tty, struct usb_serial_port *port) /* mos7840_change_port_settings(mos7840_port,old_termios); */ return 0; +err: + for (j = 0; j < NUM_URBS; ++j) { + urb = mos7840_port->write_urb_pool[j]; + if (!urb) + continue; + kfree(urb->transfer_buffer); + usb_free_urb(urb); + } + return status; } /***************************************************************************** -- cgit v1.2.3 From 172d934c92089e9183165f7024eba9508cb9ebce Mon Sep 17 00:00:00 2001 From: Andrzej Pietrasiewicz Date: Thu, 25 Jul 2013 09:13:18 +0200 Subject: usb/gadget: free opts struct on error recovery Fix memory leaks introduced in commits: 40d133d7f542616cf9538508a372306e626a16e9 usb: gadget: f_ncm: convert to new function interface with backward compatibility fee562a6450b7806f1fbbe1469a67b5395b5c10a usb: gadget: f_ecm: convert to new function interface with backward compatibility fcbdf12ebef73a6069e2a1aada1e546fb578a4aa usb: gadget: f_phonet: convert to new function interface with backward compatibility b29002a157940752dfed2c488b2011f63f007d71 usb: gadget: f_eem: convert to new function interface with backward compatibility 8cedba7c73af1369599b1111639cfeb66fe13aaa usb: gadget: f_subset: convert to new function interface with backward compatibility f466c6353819326873fa48a02c6f2d7c903240d6 usb: gadget: f_rndis: convert to new function interface with backward compatibility Signed-off-by: Andrzej Pietrasiewicz Signed-off-by: Kyungmin Park Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/f_ecm.c | 7 +++++-- drivers/usb/gadget/f_eem.c | 7 +++++-- drivers/usb/gadget/f_ncm.c | 7 +++++-- drivers/usb/gadget/f_phonet.c | 7 +++++-- drivers/usb/gadget/f_rndis.c | 7 +++++-- drivers/usb/gadget/f_subset.c | 7 +++++-- 6 files changed, 30 insertions(+), 12 deletions(-) diff --git a/drivers/usb/gadget/f_ecm.c b/drivers/usb/gadget/f_ecm.c index 5d3561ea1c1..edab45da374 100644 --- a/drivers/usb/gadget/f_ecm.c +++ b/drivers/usb/gadget/f_ecm.c @@ -959,8 +959,11 @@ static struct usb_function_instance *ecm_alloc_inst(void) mutex_init(&opts->lock); opts->func_inst.free_func_inst = ecm_free_inst; opts->net = gether_setup_default(); - if (IS_ERR(opts->net)) - return ERR_PTR(PTR_ERR(opts->net)); + if (IS_ERR(opts->net)) { + struct net_device *net = opts->net; + kfree(opts); + return ERR_CAST(net); + } config_group_init_type_name(&opts->func_inst.group, "", &ecm_func_type); diff --git a/drivers/usb/gadget/f_eem.c b/drivers/usb/gadget/f_eem.c index 90ee8022e8d..d00392d879d 100644 --- a/drivers/usb/gadget/f_eem.c +++ b/drivers/usb/gadget/f_eem.c @@ -593,8 +593,11 @@ static struct usb_function_instance *eem_alloc_inst(void) mutex_init(&opts->lock); opts->func_inst.free_func_inst = eem_free_inst; opts->net = gether_setup_default(); - if (IS_ERR(opts->net)) - return ERR_CAST(opts->net); + if (IS_ERR(opts->net)) { + struct net_device *net = opts->net; + kfree(opts); + return ERR_CAST(net); + } config_group_init_type_name(&opts->func_inst.group, "", &eem_func_type); diff --git a/drivers/usb/gadget/f_ncm.c b/drivers/usb/gadget/f_ncm.c index 952177f7eb9..1c28fe13328 100644 --- a/drivers/usb/gadget/f_ncm.c +++ b/drivers/usb/gadget/f_ncm.c @@ -1350,8 +1350,11 @@ static struct usb_function_instance *ncm_alloc_inst(void) mutex_init(&opts->lock); opts->func_inst.free_func_inst = ncm_free_inst; opts->net = gether_setup_default(); - if (IS_ERR(opts->net)) - return ERR_PTR(PTR_ERR(opts->net)); + if (IS_ERR(opts->net)) { + struct net_device *net = opts->net; + kfree(opts); + return ERR_CAST(net); + } config_group_init_type_name(&opts->func_inst.group, "", &ncm_func_type); diff --git a/drivers/usb/gadget/f_phonet.c b/drivers/usb/gadget/f_phonet.c index 7944fb0efe3..1bf26e9f38c 100644 --- a/drivers/usb/gadget/f_phonet.c +++ b/drivers/usb/gadget/f_phonet.c @@ -656,8 +656,11 @@ static struct usb_function_instance *phonet_alloc_inst(void) opts->func_inst.free_func_inst = phonet_free_inst; opts->net = gphonet_setup_default(); - if (IS_ERR(opts->net)) - return ERR_PTR(PTR_ERR(opts->net)); + if (IS_ERR(opts->net)) { + struct net_device *net = opts->net; + kfree(opts); + return ERR_CAST(net); + } config_group_init_type_name(&opts->func_inst.group, "", &phonet_func_type); diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c index 191df35ae69..717ed7f9563 100644 --- a/drivers/usb/gadget/f_rndis.c +++ b/drivers/usb/gadget/f_rndis.c @@ -963,8 +963,11 @@ static struct usb_function_instance *rndis_alloc_inst(void) mutex_init(&opts->lock); opts->func_inst.free_func_inst = rndis_free_inst; opts->net = gether_setup_default(); - if (IS_ERR(opts->net)) - return ERR_CAST(opts->net); + if (IS_ERR(opts->net)) { + struct net_device *net = opts->net; + kfree(opts); + return ERR_CAST(net); + } config_group_init_type_name(&opts->func_inst.group, "", &rndis_func_type); diff --git a/drivers/usb/gadget/f_subset.c b/drivers/usb/gadget/f_subset.c index 5601e1d96c4..7c8674fa7e8 100644 --- a/drivers/usb/gadget/f_subset.c +++ b/drivers/usb/gadget/f_subset.c @@ -505,8 +505,11 @@ static struct usb_function_instance *geth_alloc_inst(void) mutex_init(&opts->lock); opts->func_inst.free_func_inst = geth_free_inst; opts->net = gether_setup_default(); - if (IS_ERR(opts->net)) - return ERR_CAST(opts->net); + if (IS_ERR(opts->net)) { + struct net_device *net = opts->net; + kfree(opts); + return ERR_CAST(net); + } config_group_init_type_name(&opts->func_inst.group, "", &gether_func_type); -- cgit v1.2.3 From 2c7b871b9102c497ba8f972aa5d38532f05b654d Mon Sep 17 00:00:00 2001 From: William Gulland Date: Thu, 27 Jun 2013 16:10:20 -0700 Subject: usb: Clear both buffers when clearing a control transfer TT buffer. Control transfers have both IN and OUT (or SETUP) packets, so when clearing TT buffers for a control transfer it's necessary to send two HUB_CLEAR_TT_BUFFER requests to the hub. Signed-off-by: William Gulland Acked-by: Alan Stern Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/hub.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index c857471519e..4a8a1d68002 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -668,6 +668,15 @@ resubmit: static inline int hub_clear_tt_buffer (struct usb_device *hdev, u16 devinfo, u16 tt) { + /* Need to clear both directions for control ep */ + if (((devinfo >> 11) & USB_ENDPOINT_XFERTYPE_MASK) == + USB_ENDPOINT_XFER_CONTROL) { + int status = usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0), + HUB_CLEAR_TT_BUFFER, USB_RT_PORT, + devinfo ^ 0x8000, tt, NULL, 0, 1000); + if (status) + return status; + } return usb_control_msg(hdev, usb_sndctrlpipe(hdev, 0), HUB_CLEAR_TT_BUFFER, USB_RT_PORT, devinfo, tt, NULL, 0, 1000); -- cgit v1.2.3 From e3c736fe47289dc6f577c8b20cc146bd7e69aff0 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 25 Jul 2013 18:27:45 -0400 Subject: drm/radeon/dpm: fix a typo in the rv6xx mclk setup Need to set high for the last two entries. Looks like a copy and paste typo. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/rv6xx_dpm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/rv6xx_dpm.c b/drivers/gpu/drm/radeon/rv6xx_dpm.c index 65e33f38734..b1c2a62df95 100644 --- a/drivers/gpu/drm/radeon/rv6xx_dpm.c +++ b/drivers/gpu/drm/radeon/rv6xx_dpm.c @@ -819,7 +819,7 @@ static void rv6xx_program_memory_timing_parameters(struct radeon_device *rdev) POWERMODE1(calculate_memory_refresh_rate(rdev, pi->hw.sclks[R600_POWER_LEVEL_MEDIUM])) | POWERMODE2(calculate_memory_refresh_rate(rdev, - pi->hw.sclks[R600_POWER_LEVEL_MEDIUM])) | + pi->hw.sclks[R600_POWER_LEVEL_HIGH])) | POWERMODE3(calculate_memory_refresh_rate(rdev, pi->hw.sclks[R600_POWER_LEVEL_HIGH]))); WREG32(ARB_RFSH_RATE, arb_refresh_rate); -- cgit v1.2.3 From 2333a003a83ae8b257ac4bc1bb297c897c1ebb90 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 25 Jul 2013 18:29:14 -0400 Subject: drm/radeon/dpm: fix displaygap programming on rv6xx Need to use the driver state rather than the register state since the displays may not be enabled when the power state is programmed. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/rv6xx_dpm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/rv6xx_dpm.c b/drivers/gpu/drm/radeon/rv6xx_dpm.c index b1c2a62df95..dde402340f2 100644 --- a/drivers/gpu/drm/radeon/rv6xx_dpm.c +++ b/drivers/gpu/drm/radeon/rv6xx_dpm.c @@ -1182,10 +1182,10 @@ static void rv6xx_program_display_gap(struct radeon_device *rdev) u32 tmp = RREG32(CG_DISPLAY_GAP_CNTL); tmp &= ~(DISP1_GAP_MCHG_MASK | DISP2_GAP_MCHG_MASK); - if (RREG32(AVIVO_D1CRTC_CONTROL) & AVIVO_CRTC_EN) { + if (rdev->pm.dpm.new_active_crtcs & 1) { tmp |= DISP1_GAP_MCHG(R600_PM_DISPLAY_GAP_VBLANK); tmp |= DISP2_GAP_MCHG(R600_PM_DISPLAY_GAP_IGNORE); - } else if (RREG32(AVIVO_D2CRTC_CONTROL) & AVIVO_CRTC_EN) { + } else if (rdev->pm.dpm.new_active_crtcs & 2) { tmp |= DISP1_GAP_MCHG(R600_PM_DISPLAY_GAP_IGNORE); tmp |= DISP2_GAP_MCHG(R600_PM_DISPLAY_GAP_VBLANK); } else { -- cgit v1.2.3 From 515c0967205f2e6d0ca1602ce0de65f9aec1d215 Mon Sep 17 00:00:00 2001 From: Olof Johansson Date: Wed, 24 Jul 2013 08:42:27 -0700 Subject: mfd: max8925: fix dt code for backlight The device-tree enablement for max8925 has several problems, but besides the bindings being wrong (and not having seen review) there's also some bad coding practices on how to fill in the platform_data from device tree. I came across this since it causes a warning when compiling mmp2_defconfig, and instead of doing the minimal fix to silence the warning, I restructured the code a bit. This silences the warning: drivers/video/backlight/max8925_bl.c: In function 'max8925_backlight_probe': drivers/video/backlight/max8925_bl.c:177:3: warning: statement with no effect [-Wunused-value] Note that the bindings themselves need to be revisited too, but that will affect more than just the backlight driver and is best done separately; this just fixes the bad code for the backlight driver. Acked-by: Jingoo Han Signed-off-by: Olof Johansson --- drivers/video/backlight/max8925_bl.c | 41 ++++++++++++++++++------------------ 1 file changed, 21 insertions(+), 20 deletions(-) diff --git a/drivers/video/backlight/max8925_bl.c b/drivers/video/backlight/max8925_bl.c index 5ca11b066b7..886e797f75f 100644 --- a/drivers/video/backlight/max8925_bl.c +++ b/drivers/video/backlight/max8925_bl.c @@ -101,33 +101,37 @@ static const struct backlight_ops max8925_backlight_ops = { .get_brightness = max8925_backlight_get_brightness, }; -#ifdef CONFIG_OF -static int max8925_backlight_dt_init(struct platform_device *pdev, - struct max8925_backlight_pdata *pdata) +static void max8925_backlight_dt_init(struct platform_device *pdev) { struct device_node *nproot = pdev->dev.parent->of_node, *np; - int dual_string; + struct max8925_backlight_pdata *pdata; + u32 val; + + if (!nproot || !IS_ENABLED(CONFIG_OF)) + return; + + pdata = devm_kzalloc(&pdev->dev, + sizeof(struct max8925_backlight_pdata), + GFP_KERNEL); + if (!pdata) + return; - if (!nproot) - return -ENODEV; np = of_find_node_by_name(nproot, "backlight"); if (!np) { dev_err(&pdev->dev, "failed to find backlight node\n"); - return -ENODEV; + return; } - of_property_read_u32(np, "maxim,max8925-dual-string", &dual_string); - pdata->dual_string = dual_string; - return 0; + if (!of_property_read_u32(np, "maxim,max8925-dual-string", &val)) + pdata->dual_string = val; + + pdev->dev.platform_data = pdata; } -#else -#define max8925_backlight_dt_init(x, y) (-1) -#endif static int max8925_backlight_probe(struct platform_device *pdev) { struct max8925_chip *chip = dev_get_drvdata(pdev->dev.parent); - struct max8925_backlight_pdata *pdata = pdev->dev.platform_data; + struct max8925_backlight_pdata *pdata; struct max8925_backlight_data *data; struct backlight_device *bl; struct backlight_properties props; @@ -170,13 +174,10 @@ static int max8925_backlight_probe(struct platform_device *pdev) platform_set_drvdata(pdev, bl); value = 0; - if (pdev->dev.parent->of_node && !pdata) { - pdata = devm_kzalloc(&pdev->dev, - sizeof(struct max8925_backlight_pdata), - GFP_KERNEL); - max8925_backlight_dt_init(pdev, pdata); - } + if (!pdev->dev.platform_data) + max8925_backlight_dt_init(pdev); + pdata = pdev->dev.platform_data; if (pdata) { if (pdata->lxw_scl) value |= (1 << 7); -- cgit v1.2.3 From f4f85a8c94752300ad2c4f7a3475a3d3b8ef72ca Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 25 Jul 2013 20:07:25 -0400 Subject: drm/radeon/dpm: implement force performance levels for rv6xx Allows you to limit the selected power levels via sysfs. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_asic.c | 1 + drivers/gpu/drm/radeon/radeon_asic.h | 2 ++ drivers/gpu/drm/radeon/rv6xx_dpm.c | 35 +++++++++++++++++++++++++++++++++++ 3 files changed, 38 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index 78bec1a58ed..f8f8b3113dd 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -1161,6 +1161,7 @@ static struct radeon_asic rv6xx_asic = { .get_mclk = &rv6xx_dpm_get_mclk, .print_power_state = &rv6xx_dpm_print_power_state, .debugfs_print_current_performance_level = &rv6xx_dpm_debugfs_print_current_performance_level, + .force_performance_level = &rv6xx_dpm_force_performance_level, }, .pflip = { .pre_page_flip = &rs600_pre_page_flip, diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index ca189570990..902479fa737 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -421,6 +421,8 @@ void rv6xx_dpm_print_power_state(struct radeon_device *rdev, struct radeon_ps *ps); void rv6xx_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev, struct seq_file *m); +int rv6xx_dpm_force_performance_level(struct radeon_device *rdev, + enum radeon_dpm_forced_level level); /* rs780 dpm */ int rs780_dpm_init(struct radeon_device *rdev); int rs780_dpm_enable(struct radeon_device *rdev); diff --git a/drivers/gpu/drm/radeon/rv6xx_dpm.c b/drivers/gpu/drm/radeon/rv6xx_dpm.c index dde402340f2..363018c6041 100644 --- a/drivers/gpu/drm/radeon/rv6xx_dpm.c +++ b/drivers/gpu/drm/radeon/rv6xx_dpm.c @@ -1670,6 +1670,8 @@ int rv6xx_dpm_set_power_state(struct radeon_device *rdev) struct radeon_ps *old_ps = rdev->pm.dpm.current_ps; int ret; + pi->restricted_levels = 0; + rv6xx_set_uvd_clock_before_set_eng_clock(rdev, new_ps, old_ps); rv6xx_clear_vc(rdev); @@ -1756,6 +1758,8 @@ int rv6xx_dpm_set_power_state(struct radeon_device *rdev) rv6xx_set_uvd_clock_after_set_eng_clock(rdev, new_ps, old_ps); + rdev->pm.dpm.forced_level = RADEON_DPM_FORCED_LEVEL_AUTO; + return 0; } @@ -2085,3 +2089,34 @@ u32 rv6xx_dpm_get_mclk(struct radeon_device *rdev, bool low) else return requested_state->high.mclk; } + +int rv6xx_dpm_force_performance_level(struct radeon_device *rdev, + enum radeon_dpm_forced_level level) +{ + struct rv6xx_power_info *pi = rv6xx_get_pi(rdev); + + if (level == RADEON_DPM_FORCED_LEVEL_HIGH) { + pi->restricted_levels = 3; + } else if (level == RADEON_DPM_FORCED_LEVEL_LOW) { + pi->restricted_levels = 2; + } else { + pi->restricted_levels = 0; + } + + rv6xx_clear_vc(rdev); + r600_power_level_enable(rdev, R600_POWER_LEVEL_LOW, true); + r600_set_at(rdev, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF); + r600_wait_for_power_level(rdev, R600_POWER_LEVEL_LOW); + r600_power_level_enable(rdev, R600_POWER_LEVEL_HIGH, false); + r600_power_level_enable(rdev, R600_POWER_LEVEL_MEDIUM, false); + rv6xx_enable_medium(rdev); + rv6xx_enable_high(rdev); + if (pi->restricted_levels == 3) + r600_power_level_enable(rdev, R600_POWER_LEVEL_LOW, false); + rv6xx_program_vc(rdev); + rv6xx_program_at(rdev); + + rdev->pm.dpm.forced_level = level; + + return 0; +} -- cgit v1.2.3 From f5d9b7f0f93c6a7d40750b8b5528a1e0f0c678fb Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 25 Jul 2013 21:46:21 -0400 Subject: drm/radeon/dpm: fix r600_enable_sclk_control() Actually program the correct register to enable engine clock scaling control. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/r600_dpm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/r600_dpm.c b/drivers/gpu/drm/radeon/r600_dpm.c index b88f54b134a..e5c860f4ccb 100644 --- a/drivers/gpu/drm/radeon/r600_dpm.c +++ b/drivers/gpu/drm/radeon/r600_dpm.c @@ -278,9 +278,9 @@ bool r600_dynamicpm_enabled(struct radeon_device *rdev) void r600_enable_sclk_control(struct radeon_device *rdev, bool enable) { if (enable) - WREG32_P(GENERAL_PWRMGT, 0, ~SCLK_PWRMGT_OFF); + WREG32_P(SCLK_PWRMGT_CNTL, 0, ~SCLK_PWRMGT_OFF); else - WREG32_P(GENERAL_PWRMGT, SCLK_PWRMGT_OFF, ~SCLK_PWRMGT_OFF); + WREG32_P(SCLK_PWRMGT_CNTL, SCLK_PWRMGT_OFF, ~SCLK_PWRMGT_OFF); } void r600_enable_mclk_control(struct radeon_device *rdev, bool enable) -- cgit v1.2.3 From 845ad05ec31e0f3872a321e10dbeaf872022632c Mon Sep 17 00:00:00 2001 From: Feng Kan Date: Tue, 23 Jul 2013 18:52:31 +0100 Subject: arm64: Change kernel stack size to 16K Written by Catalin Marinas, tested by APM on storm platform. This is needed because of the failures encountered when running SpecWeb benchmark test. Signed-off-by: Feng Kan Acked-by: Kumar Sankaran Signed-off-by: Catalin Marinas --- arch/arm64/include/asm/thread_info.h | 4 ++-- arch/arm64/kernel/entry.S | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h index 3659e460071..23a3c4791d8 100644 --- a/arch/arm64/include/asm/thread_info.h +++ b/arch/arm64/include/asm/thread_info.h @@ -24,10 +24,10 @@ #include #ifndef CONFIG_ARM64_64K_PAGES -#define THREAD_SIZE_ORDER 1 +#define THREAD_SIZE_ORDER 2 #endif -#define THREAD_SIZE 8192 +#define THREAD_SIZE 16384 #define THREAD_START_SP (THREAD_SIZE - 16) #ifndef __ASSEMBLY__ diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index 1d1314280a0..6ad781b21c0 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -121,7 +121,7 @@ .macro get_thread_info, rd mov \rd, sp - and \rd, \rd, #~((1 << 13) - 1) // top of 8K stack + and \rd, \rd, #~(THREAD_SIZE - 1) // top of stack .endm /* -- cgit v1.2.3 From 09d8091c024ec88d1541d93eb8ddb2bd5cf10c39 Mon Sep 17 00:00:00 2001 From: "Steven Rostedt (Red Hat)" Date: Tue, 23 Jul 2013 22:21:59 -0400 Subject: tracing: Remove locking trace_types_lock from tracing_reset_all_online_cpus() Commit a82274151af "tracing: Protect ftrace_trace_arrays list in trace_events.c" added taking the trace_types_lock mutex in trace_events.c as there were several locations that needed it for protection. Unfortunately, it also encapsulated a call to tracing_reset_all_online_cpus() which also takes the trace_types_lock, causing a deadlock. This happens when a module has tracepoints and has been traced. When the module is removed, the trace events module notifier will grab the trace_types_lock, do a bunch of clean ups, and also clears the buffer by calling tracing_reset_all_online_cpus. This doesn't happen often which explains why it wasn't caught right away. Commit a82274151af was marked for stable, which means this must be sent to stable too. Link: http://lkml.kernel.org/r/51EEC646.7070306@broadcom.com Reported-by: Arend van Spril Tested-by: Arend van Spriel Cc: Alexander Z Lam Cc: Vaibhav Nagarnaik Cc: David Sharp Cc: stable@vger.kernel.org # 3.10 Signed-off-by: Steven Rostedt --- kernel/trace/trace.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 69cba470ea9..882ec1dd151 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -1224,18 +1224,17 @@ void tracing_reset_current(int cpu) tracing_reset(&global_trace.trace_buffer, cpu); } +/* Must have trace_types_lock held */ void tracing_reset_all_online_cpus(void) { struct trace_array *tr; - mutex_lock(&trace_types_lock); list_for_each_entry(tr, &ftrace_trace_arrays, list) { tracing_reset_online_cpus(&tr->trace_buffer); #ifdef CONFIG_TRACER_MAX_TRACE tracing_reset_online_cpus(&tr->max_buffer); #endif } - mutex_unlock(&trace_types_lock); } #define SAVED_CMDLINES 128 -- cgit v1.2.3 From 867974fc09f93bdd7f98d46ac3733934486bbf4a Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Fri, 26 Jul 2013 08:57:56 -0400 Subject: ahci_imx: depend on CONFIG_MFD_SYSCON ahci_imx makes use of regmap but the dependency wasn't specified in Kconfig leading build failures if CONFIG_AHCI_IMX is enabled but CONFIG_MFD_SYSCON is not. Add the Kconfig dependency. Signed-off-by: Tejun Heo Reported-by: Stephen Rothwell --- drivers/ata/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig index a4af0a2a089..4e737728aee 100644 --- a/drivers/ata/Kconfig +++ b/drivers/ata/Kconfig @@ -99,7 +99,7 @@ config SATA_AHCI_PLATFORM config AHCI_IMX tristate "Freescale i.MX AHCI SATA support" - depends on SATA_AHCI_PLATFORM + depends on SATA_AHCI_PLATFORM && MFD_SYSCON help This option enables support for the Freescale i.MX SoC's onboard AHCI SATA. -- cgit v1.2.3 From 8e5c2b776ae4c35f54547c017e0a943429f5748a Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 25 Jul 2013 21:43:39 +0200 Subject: Revert "ACPI / video / i915: No ACPI backlight if firmware expects Windows 8" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We attempted to address a regression introduced by commit a57f7f9 (ACPICA: Add Windows8/Server2012 string for _OSI method.) after which ACPI video backlight support doesn't work on a number of systems, because the relevant AML methods in the ACPI tables in their BIOSes become useless after the BIOS has been told that the OS is compatible with Windows 8. That problem is tracked by the bug entry at: https://bugzilla.kernel.org/show_bug.cgi?id=51231 Commit 8c5bd7a (ACPI / video / i915: No ACPI backlight if firmware expects Windows 8) introduced for this purpose essentially prevented the ACPI backlight support from being used if the BIOS had been told that the OS was compatible with Windows 8 and the i915 driver was loaded, in which case the backlight would always be handled by i915. Unfortunately, however, that turned out to cause problems with backlight to appear on multiple systems with symptoms indicating that i915 was unable to control the backlight on those systems as expected. For this reason, revert commit 8c5bd7a, but leave the function acpi_video_backlight_quirks() introduced by it, because another commit on top of it uses that function. References: https://lkml.org/lkml/2013/7/21/119 References: https://lkml.org/lkml/2013/7/22/261 References: https://lkml.org/lkml/2013/7/23/429 References: https://lkml.org/lkml/2013/7/23/459 References: https://lkml.org/lkml/2013/7/23/81 References: https://lkml.org/lkml/2013/7/24/27 Reported-and-tested-by: James Hogan Reported-and-tested-by: Kamal Mostafa Reported-and-tested-by: Jörg Otte Reported-and-tested-by: Steven Newbury Reported-by: Martin Steigerwald Reported-by: Kalle Valo Tested-by: Joerg Platte Signed-off-by: Rafael J. Wysocki --- drivers/acpi/internal.h | 2 -- drivers/acpi/video.c | 67 +++++------------------------------------ drivers/acpi/video_detect.c | 15 +-------- drivers/gpu/drm/i915/i915_dma.c | 2 +- include/acpi/video.h | 11 +------ include/linux/acpi.h | 1 - 6 files changed, 11 insertions(+), 87 deletions(-) diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 227aca77ee1..5da44e81dd4 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -169,10 +169,8 @@ int acpi_create_platform_device(struct acpi_device *adev, -------------------------------------------------------------------------- */ #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) bool acpi_video_backlight_quirks(void); -bool acpi_video_verify_backlight_support(void); #else static inline bool acpi_video_backlight_quirks(void) { return false; } -static inline bool acpi_video_verify_backlight_support(void) { return false; } #endif #endif /* _ACPI_INTERNAL_H_ */ diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 6dd237e79b4..0ec434d2586 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -911,7 +911,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) if (acpi_video_init_brightness(device)) return; - if (acpi_video_verify_backlight_support()) { + if (acpi_video_backlight_support()) { struct backlight_properties props; struct pci_dev *pdev; acpi_handle acpi_parent; @@ -1366,8 +1366,8 @@ acpi_video_switch_brightness(struct acpi_video_device *device, int event) unsigned long long level_current, level_next; int result = -EINVAL; - /* no warning message if acpi_backlight=vendor or a quirk is used */ - if (!acpi_video_verify_backlight_support()) + /* no warning message if acpi_backlight=vendor is used */ + if (!acpi_video_backlight_support()) return 0; if (!device->brightness) @@ -1875,46 +1875,6 @@ static int acpi_video_bus_remove(struct acpi_device *device) return 0; } -static acpi_status video_unregister_backlight(acpi_handle handle, u32 lvl, - void *context, void **rv) -{ - struct acpi_device *acpi_dev; - struct acpi_video_bus *video; - struct acpi_video_device *dev, *next; - - if (acpi_bus_get_device(handle, &acpi_dev)) - return AE_OK; - - if (acpi_match_device_ids(acpi_dev, video_device_ids)) - return AE_OK; - - video = acpi_driver_data(acpi_dev); - if (!video) - return AE_OK; - - acpi_video_bus_stop_devices(video); - mutex_lock(&video->device_list_lock); - list_for_each_entry_safe(dev, next, &video->video_device_list, entry) { - if (dev->backlight) { - backlight_device_unregister(dev->backlight); - dev->backlight = NULL; - kfree(dev->brightness->levels); - kfree(dev->brightness); - } - if (dev->cooling_dev) { - sysfs_remove_link(&dev->dev->dev.kobj, - "thermal_cooling"); - sysfs_remove_link(&dev->cooling_dev->device.kobj, - "device"); - thermal_cooling_device_unregister(dev->cooling_dev); - dev->cooling_dev = NULL; - } - } - mutex_unlock(&video->device_list_lock); - acpi_video_bus_start_devices(video); - return AE_OK; -} - static int __init is_i740(struct pci_dev *dev) { if (dev->device == 0x00D1) @@ -1946,25 +1906,14 @@ static int __init intel_opregion_present(void) return opregion; } -int __acpi_video_register(bool backlight_quirks) +int acpi_video_register(void) { - bool no_backlight; - int result; - - no_backlight = backlight_quirks ? acpi_video_backlight_quirks() : false; - + int result = 0; if (register_count) { /* - * If acpi_video_register() has been called already, don't try - * to register acpi_video_bus, but unregister backlight devices - * if no backlight support is requested. + * if the function of acpi_video_register is already called, + * don't register the acpi_vide_bus again and return no error. */ - if (no_backlight) - acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, - video_unregister_backlight, - NULL, NULL, NULL); - return 0; } @@ -1980,7 +1929,7 @@ int __acpi_video_register(bool backlight_quirks) return 0; } -EXPORT_SYMBOL(__acpi_video_register); +EXPORT_SYMBOL(acpi_video_register); void acpi_video_unregister(void) { diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 826e52def08..c3397748ba4 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -238,12 +238,7 @@ static void acpi_video_caps_check(void) bool acpi_video_backlight_quirks(void) { - if (acpi_gbl_osi_data >= ACPI_OSI_WIN_8) { - acpi_video_caps_check(); - acpi_video_support |= ACPI_VIDEO_SKIP_BACKLIGHT; - return true; - } - return false; + return acpi_gbl_osi_data >= ACPI_OSI_WIN_8; } EXPORT_SYMBOL(acpi_video_backlight_quirks); @@ -291,14 +286,6 @@ int acpi_video_backlight_support(void) } EXPORT_SYMBOL(acpi_video_backlight_support); -/* For the ACPI video driver use only. */ -bool acpi_video_verify_backlight_support(void) -{ - return (acpi_video_support & ACPI_VIDEO_SKIP_BACKLIGHT) ? - false : acpi_video_backlight_support(); -} -EXPORT_SYMBOL(acpi_video_verify_backlight_support); - /* * Use acpi_backlight=vendor/video to force that backlight switching * is processed by vendor specific acpi drivers or video.ko driver. diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index cf188ab7051..adb319b53ec 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1648,7 +1648,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) if (INTEL_INFO(dev)->num_pipes) { /* Must be done after probing outputs */ intel_opregion_init(dev); - acpi_video_register_with_quirks(); + acpi_video_register(); } if (IS_GEN5(dev)) diff --git a/include/acpi/video.h b/include/acpi/video.h index b26dc4fb7ba..61109f2609f 100644 --- a/include/acpi/video.h +++ b/include/acpi/video.h @@ -17,21 +17,12 @@ struct acpi_device; #define ACPI_VIDEO_DISPLAY_LEGACY_TV 0x0200 #if (defined CONFIG_ACPI_VIDEO || defined CONFIG_ACPI_VIDEO_MODULE) -extern int __acpi_video_register(bool backlight_quirks); -static inline int acpi_video_register(void) -{ - return __acpi_video_register(false); -} -static inline int acpi_video_register_with_quirks(void) -{ - return __acpi_video_register(true); -} +extern int acpi_video_register(void); extern void acpi_video_unregister(void); extern int acpi_video_get_edid(struct acpi_device *device, int type, int device_id, void **edid); #else static inline int acpi_video_register(void) { return 0; } -static inline int acpi_video_register_with_quirks(void) { return 0; } static inline void acpi_video_unregister(void) { return; } static inline int acpi_video_get_edid(struct acpi_device *device, int type, int device_id, void **edid) diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 6ad72f92469..353ba256f36 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -191,7 +191,6 @@ extern bool wmi_has_guid(const char *guid); #define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400 #define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800 -#define ACPI_VIDEO_SKIP_BACKLIGHT 0x1000 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) -- cgit v1.2.3 From 5ae90d8e467e625e447000cb4335c4db973b1095 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 28 Jul 2013 20:53:33 -0700 Subject: Linux 3.11-rc3 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index a35f72a420c..95a8e55fece 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 11 SUBLEVEL = 0 -EXTRAVERSION = -rc2 +EXTRAVERSION = -rc3 NAME = Linux for Workgroups # *DOCUMENTATION* -- cgit v1.2.3 From 6811b1bea98462e228fef2172c36f1543ac156fe Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 3 Jun 2013 10:53:48 +0200 Subject: drm/rcar-du: Add missing alpha plane register definitions Several alpha plane register definitions are missing, add them. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_regs.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_regs.h b/drivers/gpu/drm/rcar-du/rcar_du_regs.h index 69f21f19b51..3aba27ffc06 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_regs.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_regs.h @@ -349,10 +349,25 @@ #define APnMR_BM_AD (2 << 4) /* Auto Display Change Mode */ #define APnMWR 0x0a104 + +#define APnDSXR 0x0a110 +#define APnDSYR 0x0a114 +#define APnDPXR 0x0a118 +#define APnDPYR 0x0a11c + #define APnDSA0R 0x0a120 #define APnDSA1R 0x0a124 #define APnDSA2R 0x0a128 + +#define APnSPXR 0x0a130 +#define APnSPYR 0x0a134 +#define APnWASPR 0x0a138 +#define APnWAMWR 0x0a13c + +#define APnBTR 0x0a140 + #define APnMLR 0x0a150 +#define APnSWAPR 0x0a180 /* ----------------------------------------------------------------------------- * Display Capture Registers -- cgit v1.2.3 From d5b6dcc45950bc727f6a02d0ee68c99d0b6052ea Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 17 Jun 2013 02:29:07 +0200 Subject: drm/rcar-du: Use devm_ioremap_resource() Replace the devm_request_mem_region() and devm_ioremap_nocache() calls with devm_ioremap_resource(). Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 22 +++------------------- 1 file changed, 3 insertions(+), 19 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index dc0fe09b2ba..f776b1c66ef 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -107,7 +107,6 @@ static int rcar_du_load(struct drm_device *dev, unsigned long flags) struct platform_device *pdev = dev->platformdev; struct rcar_du_platform_data *pdata = pdev->dev.platform_data; struct rcar_du_device *rcdu; - struct resource *ioarea; struct resource *mem; int ret; @@ -129,24 +128,9 @@ static int rcar_du_load(struct drm_device *dev, unsigned long flags) /* I/O resources and clocks */ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (mem == NULL) { - dev_err(&pdev->dev, "failed to get memory resource\n"); - return -EINVAL; - } - - ioarea = devm_request_mem_region(&pdev->dev, mem->start, - resource_size(mem), pdev->name); - if (ioarea == NULL) { - dev_err(&pdev->dev, "failed to request memory region\n"); - return -EBUSY; - } - - rcdu->mmio = devm_ioremap_nocache(&pdev->dev, ioarea->start, - resource_size(ioarea)); - if (rcdu->mmio == NULL) { - dev_err(&pdev->dev, "failed to remap memory resource\n"); - return -ENOMEM; - } + rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem); + if (IS_ERR(rcdu->mmio)) + return PTR_ERR(rcdu->mmio); rcdu->clock = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(rcdu->clock)) { -- cgit v1.2.3 From 481d342e3500e71a88cac79a6fab7b62f7203c7c Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Fri, 14 Jun 2013 13:38:33 +0200 Subject: drm/rcar-du: Add platform module device table The platform device id driver data field points to a device information structure that only contains a (currently empty) features field for now. Support for additional model-dependent features will be added later. Only the R8A7779 variant is currently supported. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 13 +++++++++++++ drivers/gpu/drm/rcar-du/rcar_du_drv.h | 15 +++++++++++++++ 2 files changed, 28 insertions(+) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index f776b1c66ef..bb7193d79df 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -123,6 +123,7 @@ static int rcar_du_load(struct drm_device *dev, unsigned long flags) rcdu->dev = &pdev->dev; rcdu->pdata = pdata; + rcdu->info = (struct rcar_du_device_info *)pdev->id_entry->driver_data; rcdu->ddev = dev; dev->dev_private = rcdu; @@ -297,6 +298,17 @@ static int rcar_du_remove(struct platform_device *pdev) return 0; } +static const struct rcar_du_device_info rcar_du_r8a7779_info = { + .features = 0, +}; + +static const struct platform_device_id rcar_du_id_table[] = { + { "rcar-du-r8a7779", (kernel_ulong_t)&rcar_du_r8a7779_info }, + { } +}; + +MODULE_DEVICE_TABLE(platform, rcar_du_id_table); + static struct platform_driver rcar_du_platform_driver = { .probe = rcar_du_probe, .remove = rcar_du_remove, @@ -305,6 +317,7 @@ static struct platform_driver rcar_du_platform_driver = { .name = "rcar-du", .pm = &rcar_du_pm_ops, }, + .id_table = rcar_du_id_table, }; module_platform_driver(rcar_du_platform_driver); diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index 193cc59d495..06dbf4ff139 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h @@ -25,9 +25,18 @@ struct clk; struct device; struct drm_device; +/* + * struct rcar_du_device_info - DU model-specific information + * @features: device features (RCAR_DU_FEATURE_*) + */ +struct rcar_du_device_info { + unsigned int features; +}; + struct rcar_du_device { struct device *dev; const struct rcar_du_platform_data *pdata; + const struct rcar_du_device_info *info; void __iomem *mmio; struct clk *clock; @@ -50,6 +59,12 @@ struct rcar_du_device { } planes; }; +static inline bool rcar_du_has(struct rcar_du_device *rcdu, + unsigned int feature) +{ + return rcdu->info->features & feature; +} + int rcar_du_get(struct rcar_du_device *rcdu); void rcar_du_put(struct rcar_du_device *rcdu); -- cgit v1.2.3 From f66ee304ae8990bd31fa639b775a840d6757d746 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Fri, 14 Jun 2013 14:15:01 +0200 Subject: drm/rcar-du: Support per-CRTC clock and IRQ Some of the DU revisions use one clock and IRQ per CRTC instead of one clock and IRQ per device. Retrieve the correct clock and register the correct IRQ for each CRTC. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 120 +++++++++++++++++++++++++-------- drivers/gpu/drm/rcar-du/rcar_du_crtc.h | 2 +- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 52 +++----------- drivers/gpu/drm/rcar-du/rcar_du_drv.h | 3 +- 4 files changed, 103 insertions(+), 74 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index 24183fb9359..aefc8a0cbcb 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -69,6 +69,30 @@ static void rcar_du_crtc_clr_set(struct rcar_du_crtc *rcrtc, u32 reg, rcar_du_write(rcdu, rcrtc->mmio_offset + reg, (value & ~clr) | set); } +static int rcar_du_crtc_get(struct rcar_du_crtc *rcrtc) +{ + struct rcar_du_device *rcdu = rcrtc->crtc.dev->dev_private; + int ret; + + ret = clk_prepare_enable(rcrtc->clock); + if (ret < 0) + return ret; + + ret = rcar_du_get(rcdu); + if (ret < 0) + clk_disable_unprepare(rcrtc->clock); + + return ret; +} + +static void rcar_du_crtc_put(struct rcar_du_crtc *rcrtc) +{ + struct rcar_du_device *rcdu = rcrtc->crtc.dev->dev_private; + + rcar_du_put(rcdu); + clk_disable_unprepare(rcrtc->clock); +} + static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc) { struct drm_crtc *crtc = &rcrtc->crtc; @@ -79,7 +103,7 @@ static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc) u32 div; /* Dot clock */ - clk = clk_get_rate(rcdu->clock); + clk = clk_get_rate(rcrtc->clock); div = DIV_ROUND_CLOSEST(clk, mode->clock * 1000); div = clamp(div, 1U, 64U) - 1; @@ -313,20 +337,16 @@ static void rcar_du_crtc_stop(struct rcar_du_crtc *rcrtc) void rcar_du_crtc_suspend(struct rcar_du_crtc *rcrtc) { - struct rcar_du_device *rcdu = rcrtc->crtc.dev->dev_private; - rcar_du_crtc_stop(rcrtc); - rcar_du_put(rcdu); + rcar_du_crtc_put(rcrtc); } void rcar_du_crtc_resume(struct rcar_du_crtc *rcrtc) { - struct rcar_du_device *rcdu = rcrtc->crtc.dev->dev_private; - if (rcrtc->dpms != DRM_MODE_DPMS_ON) return; - rcar_du_get(rcdu); + rcar_du_crtc_get(rcrtc); rcar_du_crtc_start(rcrtc); } @@ -340,18 +360,17 @@ static void rcar_du_crtc_update_base(struct rcar_du_crtc *rcrtc) static void rcar_du_crtc_dpms(struct drm_crtc *crtc, int mode) { - struct rcar_du_device *rcdu = crtc->dev->dev_private; struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc); if (rcrtc->dpms == mode) return; if (mode == DRM_MODE_DPMS_ON) { - rcar_du_get(rcdu); + rcar_du_crtc_get(rcrtc); rcar_du_crtc_start(rcrtc); } else { rcar_du_crtc_stop(rcrtc); - rcar_du_put(rcdu); + rcar_du_crtc_put(rcrtc); } rcrtc->dpms = mode; @@ -367,13 +386,12 @@ static bool rcar_du_crtc_mode_fixup(struct drm_crtc *crtc, static void rcar_du_crtc_mode_prepare(struct drm_crtc *crtc) { - struct rcar_du_device *rcdu = crtc->dev->dev_private; struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc); /* We need to access the hardware during mode set, acquire a reference - * to the DU. + * to the CRTC. */ - rcar_du_get(rcdu); + rcar_du_crtc_get(rcrtc); /* Stop the CRTC and release the plane. Force the DPMS mode to off as a * result. @@ -423,10 +441,10 @@ static int rcar_du_crtc_mode_set(struct drm_crtc *crtc, error: /* There's no rollback/abort operation to clean up in case of error. We - * thus need to release the reference to the DU acquired in prepare() + * thus need to release the reference to the CRTC acquired in prepare() * here. */ - rcar_du_put(rcdu); + rcar_du_crtc_put(rcrtc); return ret; } @@ -514,6 +532,24 @@ static void rcar_du_crtc_finish_page_flip(struct rcar_du_crtc *rcrtc) drm_vblank_put(dev, rcrtc->index); } +static irqreturn_t rcar_du_crtc_irq(int irq, void *arg) +{ + struct rcar_du_crtc *rcrtc = arg; + irqreturn_t ret = IRQ_NONE; + u32 status; + + status = rcar_du_crtc_read(rcrtc, DSSR); + rcar_du_crtc_write(rcrtc, DSRCR, status & DSRCR_MASK); + + if (status & DSSR_VBK) { + drm_handle_vblank(rcrtc->crtc.dev, rcrtc->index); + rcar_du_crtc_finish_page_flip(rcrtc); + ret = IRQ_HANDLED; + } + + return ret; +} + static int rcar_du_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb, struct drm_pending_vblank_event *event) @@ -551,10 +587,29 @@ static const struct drm_crtc_funcs crtc_funcs = { int rcar_du_crtc_create(struct rcar_du_device *rcdu, unsigned int index) { + struct platform_device *pdev = to_platform_device(rcdu->dev); struct rcar_du_crtc *rcrtc = &rcdu->crtcs[index]; struct drm_crtc *crtc = &rcrtc->crtc; + unsigned int irqflags; + char clk_name[5]; + char *name; + int irq; int ret; + /* Get the CRTC clock. */ + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_CRTC_IRQ_CLOCK)) { + sprintf(clk_name, "du.%u", index); + name = clk_name; + } else { + name = NULL; + } + + rcrtc->clock = devm_clk_get(rcdu->dev, name); + if (IS_ERR(rcrtc->clock)) { + dev_err(rcdu->dev, "no clock for CRTC %u\n", index); + return PTR_ERR(rcrtc->clock); + } + rcrtc->mmio_offset = index ? DISP2_REG_OFFSET : 0; rcrtc->index = index; rcrtc->dpms = DRM_MODE_DPMS_OFF; @@ -568,6 +623,28 @@ int rcar_du_crtc_create(struct rcar_du_device *rcdu, unsigned int index) drm_crtc_helper_add(crtc, &crtc_helper_funcs); + /* Register the interrupt handler. */ + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_CRTC_IRQ_CLOCK)) { + irq = platform_get_irq(pdev, index); + irqflags = 0; + } else { + irq = platform_get_irq(pdev, 0); + irqflags = IRQF_SHARED; + } + + if (irq < 0) { + dev_err(rcdu->dev, "no IRQ for CRTC %u\n", index); + return ret; + } + + ret = devm_request_irq(rcdu->dev, irq, rcar_du_crtc_irq, irqflags, + dev_name(rcdu->dev), rcrtc); + if (ret < 0) { + dev_err(rcdu->dev, + "failed to register IRQ for CRTC %u\n", index); + return ret; + } + return 0; } @@ -580,16 +657,3 @@ void rcar_du_crtc_enable_vblank(struct rcar_du_crtc *rcrtc, bool enable) rcar_du_crtc_clr(rcrtc, DIER, DIER_VBE); } } - -void rcar_du_crtc_irq(struct rcar_du_crtc *rcrtc) -{ - u32 status; - - status = rcar_du_crtc_read(rcrtc, DSSR); - rcar_du_crtc_write(rcrtc, DSRCR, status & DSRCR_MASK); - - if (status & DSSR_VBK) { - drm_handle_vblank(rcrtc->crtc.dev, rcrtc->index); - rcar_du_crtc_finish_page_flip(rcrtc); - } -} diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h index 2a0365bcbd1..5b69e98a3b9 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h @@ -25,6 +25,7 @@ struct rcar_du_plane; struct rcar_du_crtc { struct drm_crtc crtc; + struct clk *clock; unsigned int mmio_offset; unsigned int index; bool started; @@ -38,7 +39,6 @@ struct rcar_du_crtc { int rcar_du_crtc_create(struct rcar_du_device *rcdu, unsigned int index); void rcar_du_crtc_enable_vblank(struct rcar_du_crtc *rcrtc, bool enable); -void rcar_du_crtc_irq(struct rcar_du_crtc *rcrtc); void rcar_du_crtc_cancel_page_flip(struct rcar_du_crtc *rcrtc, struct drm_file *file); void rcar_du_crtc_suspend(struct rcar_du_crtc *rcrtc); diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index bb7193d79df..5f82e046f83 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -35,8 +35,8 @@ /* * rcar_du_get - Acquire a reference to the DU * - * Acquiring a reference enables the device clock and setup core registers. A - * reference must be held before accessing any hardware registers. + * Acquiring the first reference setups core registers. A reference must be + * held before accessing any hardware registers. * * This function must be called with the DRM mode_config lock held. * @@ -44,16 +44,9 @@ */ int rcar_du_get(struct rcar_du_device *rcdu) { - int ret; - if (rcdu->use_count) goto done; - /* Enable clocks before accessing the hardware. */ - ret = clk_prepare_enable(rcdu->clock); - if (ret < 0) - return ret; - /* Enable extended features */ rcar_du_write(rcdu, DEFR, DEFR_CODE | DEFR_DEFE); rcar_du_write(rcdu, DEFR2, DEFR2_CODE | DEFR2_DEFE2G); @@ -74,16 +67,11 @@ done: /* * rcar_du_put - Release a reference to the DU * - * Releasing the last reference disables the device clock. - * * This function must be called with the DRM mode_config lock held. */ void rcar_du_put(struct rcar_du_device *rcdu) { - if (--rcdu->use_count) - return; - - clk_disable_unprepare(rcdu->clock); + --rcdu->use_count; } /* ----------------------------------------------------------------------------- @@ -95,8 +83,8 @@ static int rcar_du_unload(struct drm_device *dev) drm_kms_helper_poll_fini(dev); drm_mode_config_cleanup(dev); drm_vblank_cleanup(dev); - drm_irq_uninstall(dev); + dev->irq_enabled = 0; dev->dev_private = NULL; return 0; @@ -127,18 +115,12 @@ static int rcar_du_load(struct drm_device *dev, unsigned long flags) rcdu->ddev = dev; dev->dev_private = rcdu; - /* I/O resources and clocks */ + /* I/O resources */ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem); if (IS_ERR(rcdu->mmio)) return PTR_ERR(rcdu->mmio); - rcdu->clock = devm_clk_get(&pdev->dev, NULL); - if (IS_ERR(rcdu->clock)) { - dev_err(&pdev->dev, "failed to get clock\n"); - return -ENOENT; - } - /* DRM/KMS objects */ ret = rcar_du_modeset_init(rcdu); if (ret < 0) { @@ -146,18 +128,14 @@ static int rcar_du_load(struct drm_device *dev, unsigned long flags) goto done; } - /* IRQ and vblank handling */ + /* vblank handling */ ret = drm_vblank_init(dev, (1 << rcdu->num_crtcs) - 1); if (ret < 0) { dev_err(&pdev->dev, "failed to initialize vblank\n"); goto done; } - ret = drm_irq_install(dev); - if (ret < 0) { - dev_err(&pdev->dev, "failed to install IRQ handler\n"); - goto done; - } + dev->irq_enabled = 1; platform_set_drvdata(pdev, rcdu); @@ -177,18 +155,6 @@ static void rcar_du_preclose(struct drm_device *dev, struct drm_file *file) rcar_du_crtc_cancel_page_flip(&rcdu->crtcs[i], file); } -static irqreturn_t rcar_du_irq(int irq, void *arg) -{ - struct drm_device *dev = arg; - struct rcar_du_device *rcdu = dev->dev_private; - unsigned int i; - - for (i = 0; i < ARRAY_SIZE(rcdu->crtcs); ++i) - rcar_du_crtc_irq(&rcdu->crtcs[i]); - - return IRQ_HANDLED; -} - static int rcar_du_enable_vblank(struct drm_device *dev, int crtc) { struct rcar_du_device *rcdu = dev->dev_private; @@ -221,12 +187,10 @@ static const struct file_operations rcar_du_fops = { }; static struct drm_driver rcar_du_driver = { - .driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET - | DRIVER_PRIME, + .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME, .load = rcar_du_load, .unload = rcar_du_unload, .preclose = rcar_du_preclose, - .irq_handler = rcar_du_irq, .get_vblank_counter = drm_vblank_count, .enable_vblank = rcar_du_enable_vblank, .disable_vblank = rcar_du_disable_vblank, diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index 06dbf4ff139..7d2320fb948 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h @@ -25,6 +25,8 @@ struct clk; struct device; struct drm_device; +#define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK (1 << 0) /* Per-CRTC IRQ and clock */ + /* * struct rcar_du_device_info - DU model-specific information * @features: device features (RCAR_DU_FEATURE_*) @@ -39,7 +41,6 @@ struct rcar_du_device { const struct rcar_du_device_info *info; void __iomem *mmio; - struct clk *clock; unsigned int use_count; struct drm_device *ddev; -- cgit v1.2.3 From 9e7db06d3ac0ffcd866e5b7114f9a7ba12f7b6ac Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Fri, 14 Jun 2013 20:54:16 +0200 Subject: drm/rcar-du: Clarify comment regarding plane Y source coordinate The R8A7790 DU documentation contains further information regarding the plane Y source coordinate. Update the comment accordingly. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_plane.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/rcar-du/rcar_du_plane.c index a65f81ddf51..38ebd20e4e8 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c @@ -103,9 +103,12 @@ void rcar_du_plane_update_base(struct rcar_du_plane *plane) struct rcar_du_device *rcdu = plane->dev; unsigned int index = plane->hwindex; - /* According to the datasheet the Y position is expressed in raster line - * units. However, 32bpp formats seem to require a doubled Y position - * value. Similarly, for the second plane, NV12 and NV21 formats seem to + /* The Y position is expressed in raster line units and must be doubled + * for 32bpp formats, according to the R8A7790 datasheet. No mention of + * doubling the Y position is found in the R8A7779 datasheet, but the + * rule seems to apply there as well. + * + * Similarly, for the second plane, NV12 and NV21 formats seem to * require a halved Y position value. */ rcar_du_plane_write(rcdu, index, PnSPXR, plane->src_x); -- cgit v1.2.3 From 56c5dd00f8db27a429647b14c8c309bd5d9c1d15 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sat, 15 Jun 2013 14:21:51 +0200 Subject: drm/rcar-du: Split LVDS encoder and connector This prepares for the encoders rework. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/Makefile | 1 + drivers/gpu/drm/rcar-du/rcar_du_lvds.c | 120 +-------------------------- drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c | 130 ++++++++++++++++++++++++++++++ drivers/gpu/drm/rcar-du/rcar_du_lvdscon.h | 25 ++++++ 4 files changed, 158 insertions(+), 118 deletions(-) create mode 100644 drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c create mode 100644 drivers/gpu/drm/rcar-du/rcar_du_lvdscon.h diff --git a/drivers/gpu/drm/rcar-du/Makefile b/drivers/gpu/drm/rcar-du/Makefile index 7333c009401..5def510599b 100644 --- a/drivers/gpu/drm/rcar-du/Makefile +++ b/drivers/gpu/drm/rcar-du/Makefile @@ -2,6 +2,7 @@ rcar-du-drm-y := rcar_du_crtc.o \ rcar_du_drv.o \ rcar_du_kms.o \ rcar_du_lvds.o \ + rcar_du_lvdscon.o \ rcar_du_plane.o \ rcar_du_vga.o diff --git a/drivers/gpu/drm/rcar-du/rcar_du_lvds.c b/drivers/gpu/drm/rcar-du/rcar_du_lvds.c index 7aefe7267e1..82e515741f8 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_lvds.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_lvds.c @@ -1,5 +1,5 @@ /* - * rcar_du_lvds.c -- R-Car Display Unit LVDS Encoder and Connector + * rcar_du_lvds.c -- R-Car Display Unit LVDS Encoder * * Copyright (C) 2013 Renesas Corporation * @@ -18,123 +18,7 @@ #include "rcar_du_drv.h" #include "rcar_du_kms.h" #include "rcar_du_lvds.h" - -struct rcar_du_lvds_connector { - struct rcar_du_connector connector; - - const struct rcar_du_panel_data *panel; -}; - -#define to_rcar_lvds_connector(c) \ - container_of(c, struct rcar_du_lvds_connector, connector.connector) - -/* ----------------------------------------------------------------------------- - * Connector - */ - -static int rcar_du_lvds_connector_get_modes(struct drm_connector *connector) -{ - struct rcar_du_lvds_connector *lvdscon = to_rcar_lvds_connector(connector); - struct drm_display_mode *mode; - - mode = drm_mode_create(connector->dev); - if (mode == NULL) - return 0; - - mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER; - mode->clock = lvdscon->panel->mode.clock; - mode->hdisplay = lvdscon->panel->mode.hdisplay; - mode->hsync_start = lvdscon->panel->mode.hsync_start; - mode->hsync_end = lvdscon->panel->mode.hsync_end; - mode->htotal = lvdscon->panel->mode.htotal; - mode->vdisplay = lvdscon->panel->mode.vdisplay; - mode->vsync_start = lvdscon->panel->mode.vsync_start; - mode->vsync_end = lvdscon->panel->mode.vsync_end; - mode->vtotal = lvdscon->panel->mode.vtotal; - mode->flags = lvdscon->panel->mode.flags; - - drm_mode_set_name(mode); - drm_mode_probed_add(connector, mode); - - return 1; -} - -static int rcar_du_lvds_connector_mode_valid(struct drm_connector *connector, - struct drm_display_mode *mode) -{ - return MODE_OK; -} - -static const struct drm_connector_helper_funcs connector_helper_funcs = { - .get_modes = rcar_du_lvds_connector_get_modes, - .mode_valid = rcar_du_lvds_connector_mode_valid, - .best_encoder = rcar_du_connector_best_encoder, -}; - -static void rcar_du_lvds_connector_destroy(struct drm_connector *connector) -{ - drm_sysfs_connector_remove(connector); - drm_connector_cleanup(connector); -} - -static enum drm_connector_status -rcar_du_lvds_connector_detect(struct drm_connector *connector, bool force) -{ - return connector_status_connected; -} - -static const struct drm_connector_funcs connector_funcs = { - .dpms = drm_helper_connector_dpms, - .detect = rcar_du_lvds_connector_detect, - .fill_modes = drm_helper_probe_single_connector_modes, - .destroy = rcar_du_lvds_connector_destroy, -}; - -static int rcar_du_lvds_connector_init(struct rcar_du_device *rcdu, - struct rcar_du_encoder *renc, - const struct rcar_du_panel_data *panel) -{ - struct rcar_du_lvds_connector *lvdscon; - struct drm_connector *connector; - int ret; - - lvdscon = devm_kzalloc(rcdu->dev, sizeof(*lvdscon), GFP_KERNEL); - if (lvdscon == NULL) - return -ENOMEM; - - lvdscon->panel = panel; - - connector = &lvdscon->connector.connector; - connector->display_info.width_mm = panel->width_mm; - connector->display_info.height_mm = panel->height_mm; - - ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs, - DRM_MODE_CONNECTOR_LVDS); - if (ret < 0) - return ret; - - drm_connector_helper_add(connector, &connector_helper_funcs); - ret = drm_sysfs_connector_add(connector); - if (ret < 0) - return ret; - - drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); - drm_object_property_set_value(&connector->base, - rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF); - - ret = drm_mode_connector_attach_encoder(connector, &renc->encoder); - if (ret < 0) - return ret; - - connector->encoder = &renc->encoder; - lvdscon->connector.encoder = renc; - - return 0; -} - -/* ----------------------------------------------------------------------------- - * Encoder - */ +#include "rcar_du_lvdscon.h" static void rcar_du_lvds_encoder_dpms(struct drm_encoder *encoder, int mode) { diff --git a/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c b/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c new file mode 100644 index 00000000000..6cfcc9438c6 --- /dev/null +++ b/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c @@ -0,0 +1,130 @@ +/* + * rcar_du_lvdscon.c -- R-Car Display Unit LVDS Connector + * + * Copyright (C) 2013 Renesas Corporation + * + * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include +#include +#include + +#include "rcar_du_drv.h" +#include "rcar_du_kms.h" +#include "rcar_du_lvdscon.h" + +struct rcar_du_lvds_connector { + struct rcar_du_connector connector; + + const struct rcar_du_panel_data *panel; +}; + +#define to_rcar_lvds_connector(c) \ + container_of(c, struct rcar_du_lvds_connector, connector.connector) + +static int rcar_du_lvds_connector_get_modes(struct drm_connector *connector) +{ + struct rcar_du_lvds_connector *lvdscon = + to_rcar_lvds_connector(connector); + struct drm_display_mode *mode; + + mode = drm_mode_create(connector->dev); + if (mode == NULL) + return 0; + + mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER; + mode->clock = lvdscon->panel->mode.clock; + mode->hdisplay = lvdscon->panel->mode.hdisplay; + mode->hsync_start = lvdscon->panel->mode.hsync_start; + mode->hsync_end = lvdscon->panel->mode.hsync_end; + mode->htotal = lvdscon->panel->mode.htotal; + mode->vdisplay = lvdscon->panel->mode.vdisplay; + mode->vsync_start = lvdscon->panel->mode.vsync_start; + mode->vsync_end = lvdscon->panel->mode.vsync_end; + mode->vtotal = lvdscon->panel->mode.vtotal; + mode->flags = lvdscon->panel->mode.flags; + + drm_mode_set_name(mode); + drm_mode_probed_add(connector, mode); + + return 1; +} + +static int rcar_du_lvds_connector_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode) +{ + return MODE_OK; +} + +static const struct drm_connector_helper_funcs connector_helper_funcs = { + .get_modes = rcar_du_lvds_connector_get_modes, + .mode_valid = rcar_du_lvds_connector_mode_valid, + .best_encoder = rcar_du_connector_best_encoder, +}; + +static void rcar_du_lvds_connector_destroy(struct drm_connector *connector) +{ + drm_sysfs_connector_remove(connector); + drm_connector_cleanup(connector); +} + +static enum drm_connector_status +rcar_du_lvds_connector_detect(struct drm_connector *connector, bool force) +{ + return connector_status_connected; +} + +static const struct drm_connector_funcs connector_funcs = { + .dpms = drm_helper_connector_dpms, + .detect = rcar_du_lvds_connector_detect, + .fill_modes = drm_helper_probe_single_connector_modes, + .destroy = rcar_du_lvds_connector_destroy, +}; + +int rcar_du_lvds_connector_init(struct rcar_du_device *rcdu, + struct rcar_du_encoder *renc, + const struct rcar_du_panel_data *panel) +{ + struct rcar_du_lvds_connector *lvdscon; + struct drm_connector *connector; + int ret; + + lvdscon = devm_kzalloc(rcdu->dev, sizeof(*lvdscon), GFP_KERNEL); + if (lvdscon == NULL) + return -ENOMEM; + + lvdscon->panel = panel; + + connector = &lvdscon->connector.connector; + connector->display_info.width_mm = panel->width_mm; + connector->display_info.height_mm = panel->height_mm; + + ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs, + DRM_MODE_CONNECTOR_LVDS); + if (ret < 0) + return ret; + + drm_connector_helper_add(connector, &connector_helper_funcs); + ret = drm_sysfs_connector_add(connector); + if (ret < 0) + return ret; + + drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); + drm_object_property_set_value(&connector->base, + rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF); + + ret = drm_mode_connector_attach_encoder(connector, &renc->encoder); + if (ret < 0) + return ret; + + connector->encoder = &renc->encoder; + lvdscon->connector.encoder = renc; + + return 0; +} diff --git a/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.h b/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.h new file mode 100644 index 00000000000..bff8683699c --- /dev/null +++ b/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.h @@ -0,0 +1,25 @@ +/* + * rcar_du_lvdscon.h -- R-Car Display Unit LVDS Connector + * + * Copyright (C) 2013 Renesas Corporation + * + * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef __RCAR_DU_LVDSCON_H__ +#define __RCAR_DU_LVDSCON_H__ + +struct rcar_du_device; +struct rcar_du_encoder; +struct rcar_du_panel_data; + +int rcar_du_lvds_connector_init(struct rcar_du_device *rcdu, + struct rcar_du_encoder *renc, + const struct rcar_du_panel_data *panel); + +#endif /* __RCAR_DU_LVDSCON_H__ */ -- cgit v1.2.3 From 9e8be27233c1e98b06edeb801640b1f96b09e466 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sat, 15 Jun 2013 14:21:51 +0200 Subject: drm/rcar-du: Split VGA encoder and connector This prepares for the encoders rework. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/Makefile | 3 +- drivers/gpu/drm/rcar-du/rcar_du_vga.c | 86 +---------------------------- drivers/gpu/drm/rcar-du/rcar_du_vga.h | 2 +- drivers/gpu/drm/rcar-du/rcar_du_vgacon.c | 95 ++++++++++++++++++++++++++++++++ drivers/gpu/drm/rcar-du/rcar_du_vgacon.h | 23 ++++++++ 5 files changed, 123 insertions(+), 86 deletions(-) create mode 100644 drivers/gpu/drm/rcar-du/rcar_du_vgacon.c create mode 100644 drivers/gpu/drm/rcar-du/rcar_du_vgacon.h diff --git a/drivers/gpu/drm/rcar-du/Makefile b/drivers/gpu/drm/rcar-du/Makefile index 5def510599b..45a8479aed0 100644 --- a/drivers/gpu/drm/rcar-du/Makefile +++ b/drivers/gpu/drm/rcar-du/Makefile @@ -4,6 +4,7 @@ rcar-du-drm-y := rcar_du_crtc.o \ rcar_du_lvds.o \ rcar_du_lvdscon.o \ rcar_du_plane.o \ - rcar_du_vga.o + rcar_du_vga.o \ + rcar_du_vgacon.o obj-$(CONFIG_DRM_RCAR_DU) += rcar-du-drm.o diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vga.c b/drivers/gpu/drm/rcar-du/rcar_du_vga.c index 327289ec380..369ab32d565 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_vga.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_vga.c @@ -1,5 +1,5 @@ /* - * rcar_du_vga.c -- R-Car Display Unit VGA DAC and Connector + * rcar_du_vga.c -- R-Car Display Unit VGA DAC * * Copyright (C) 2013 Renesas Corporation * @@ -18,89 +18,7 @@ #include "rcar_du_drv.h" #include "rcar_du_kms.h" #include "rcar_du_vga.h" - -/* ----------------------------------------------------------------------------- - * Connector - */ - -static int rcar_du_vga_connector_get_modes(struct drm_connector *connector) -{ - return 0; -} - -static int rcar_du_vga_connector_mode_valid(struct drm_connector *connector, - struct drm_display_mode *mode) -{ - return MODE_OK; -} - -static const struct drm_connector_helper_funcs connector_helper_funcs = { - .get_modes = rcar_du_vga_connector_get_modes, - .mode_valid = rcar_du_vga_connector_mode_valid, - .best_encoder = rcar_du_connector_best_encoder, -}; - -static void rcar_du_vga_connector_destroy(struct drm_connector *connector) -{ - drm_sysfs_connector_remove(connector); - drm_connector_cleanup(connector); -} - -static enum drm_connector_status -rcar_du_vga_connector_detect(struct drm_connector *connector, bool force) -{ - return connector_status_unknown; -} - -static const struct drm_connector_funcs connector_funcs = { - .dpms = drm_helper_connector_dpms, - .detect = rcar_du_vga_connector_detect, - .fill_modes = drm_helper_probe_single_connector_modes, - .destroy = rcar_du_vga_connector_destroy, -}; - -static int rcar_du_vga_connector_init(struct rcar_du_device *rcdu, - struct rcar_du_encoder *renc) -{ - struct rcar_du_connector *rcon; - struct drm_connector *connector; - int ret; - - rcon = devm_kzalloc(rcdu->dev, sizeof(*rcon), GFP_KERNEL); - if (rcon == NULL) - return -ENOMEM; - - connector = &rcon->connector; - connector->display_info.width_mm = 0; - connector->display_info.height_mm = 0; - - ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs, - DRM_MODE_CONNECTOR_VGA); - if (ret < 0) - return ret; - - drm_connector_helper_add(connector, &connector_helper_funcs); - ret = drm_sysfs_connector_add(connector); - if (ret < 0) - return ret; - - drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); - drm_object_property_set_value(&connector->base, - rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF); - - ret = drm_mode_connector_attach_encoder(connector, &renc->encoder); - if (ret < 0) - return ret; - - connector->encoder = &renc->encoder; - rcon->encoder = renc; - - return 0; -} - -/* ----------------------------------------------------------------------------- - * Encoder - */ +#include "rcar_du_vgacon.h" static void rcar_du_vga_encoder_dpms(struct drm_encoder *encoder, int mode) { diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vga.h b/drivers/gpu/drm/rcar-du/rcar_du_vga.h index 66b4d2d7190..b969b2075b5 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_vga.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_vga.h @@ -1,5 +1,5 @@ /* - * rcar_du_vga.h -- R-Car Display Unit VGA DAC and Connector + * rcar_du_vga.h -- R-Car Display Unit VGA DAC * * Copyright (C) 2013 Renesas Corporation * diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c b/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c new file mode 100644 index 00000000000..2ee32033361 --- /dev/null +++ b/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c @@ -0,0 +1,95 @@ +/* + * rcar_du_vgacon.c -- R-Car Display Unit VGA Connector + * + * Copyright (C) 2013 Renesas Corporation + * + * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include +#include +#include + +#include "rcar_du_drv.h" +#include "rcar_du_kms.h" +#include "rcar_du_vgacon.h" + +static int rcar_du_vga_connector_get_modes(struct drm_connector *connector) +{ + return 0; +} + +static int rcar_du_vga_connector_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode) +{ + return MODE_OK; +} + +static const struct drm_connector_helper_funcs connector_helper_funcs = { + .get_modes = rcar_du_vga_connector_get_modes, + .mode_valid = rcar_du_vga_connector_mode_valid, + .best_encoder = rcar_du_connector_best_encoder, +}; + +static void rcar_du_vga_connector_destroy(struct drm_connector *connector) +{ + drm_sysfs_connector_remove(connector); + drm_connector_cleanup(connector); +} + +static enum drm_connector_status +rcar_du_vga_connector_detect(struct drm_connector *connector, bool force) +{ + return connector_status_unknown; +} + +static const struct drm_connector_funcs connector_funcs = { + .dpms = drm_helper_connector_dpms, + .detect = rcar_du_vga_connector_detect, + .fill_modes = drm_helper_probe_single_connector_modes, + .destroy = rcar_du_vga_connector_destroy, +}; + +int rcar_du_vga_connector_init(struct rcar_du_device *rcdu, + struct rcar_du_encoder *renc) +{ + struct rcar_du_connector *rcon; + struct drm_connector *connector; + int ret; + + rcon = devm_kzalloc(rcdu->dev, sizeof(*rcon), GFP_KERNEL); + if (rcon == NULL) + return -ENOMEM; + + connector = &rcon->connector; + connector->display_info.width_mm = 0; + connector->display_info.height_mm = 0; + + ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs, + DRM_MODE_CONNECTOR_VGA); + if (ret < 0) + return ret; + + drm_connector_helper_add(connector, &connector_helper_funcs); + ret = drm_sysfs_connector_add(connector); + if (ret < 0) + return ret; + + drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF); + drm_object_property_set_value(&connector->base, + rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF); + + ret = drm_mode_connector_attach_encoder(connector, &renc->encoder); + if (ret < 0) + return ret; + + connector->encoder = &renc->encoder; + rcon->encoder = renc; + + return 0; +} diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vgacon.h b/drivers/gpu/drm/rcar-du/rcar_du_vgacon.h new file mode 100644 index 00000000000..b12b0cf7f11 --- /dev/null +++ b/drivers/gpu/drm/rcar-du/rcar_du_vgacon.h @@ -0,0 +1,23 @@ +/* + * rcar_du_vgacon.h -- R-Car Display Unit VGA Connector + * + * Copyright (C) 2013 Renesas Corporation + * + * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef __RCAR_DU_VGACON_H__ +#define __RCAR_DU_VGACON_H__ + +struct rcar_du_device; +struct rcar_du_encoder; + +int rcar_du_vga_connector_init(struct rcar_du_device *rcdu, + struct rcar_du_encoder *renc); + +#endif /* __RCAR_DU_VGACON_H__ */ -- cgit v1.2.3 From 6978f123776594b251d26dac9bcdf3ce8e9781c8 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sat, 15 Jun 2013 15:02:12 +0200 Subject: drm/rcar-du: Merge LVDS and VGA encoder code Create a single rcar_du_encoder structure that implements a KMS encoder. The current implementation is straightforward and only configures CRTC output routing. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/Makefile | 3 +- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 2 - drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 148 ++++++++++++++++++++++++++++++ drivers/gpu/drm/rcar-du/rcar_du_encoder.h | 45 +++++++++ drivers/gpu/drm/rcar-du/rcar_du_kms.c | 49 ++-------- drivers/gpu/drm/rcar-du/rcar_du_kms.h | 29 +----- drivers/gpu/drm/rcar-du/rcar_du_lvds.c | 100 -------------------- drivers/gpu/drm/rcar-du/rcar_du_lvds.h | 24 ----- drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c | 1 + drivers/gpu/drm/rcar-du/rcar_du_vga.c | 67 -------------- drivers/gpu/drm/rcar-du/rcar_du_vga.h | 24 ----- drivers/gpu/drm/rcar-du/rcar_du_vgacon.c | 1 + 12 files changed, 205 insertions(+), 288 deletions(-) create mode 100644 drivers/gpu/drm/rcar-du/rcar_du_encoder.c create mode 100644 drivers/gpu/drm/rcar-du/rcar_du_encoder.h delete mode 100644 drivers/gpu/drm/rcar-du/rcar_du_lvds.c delete mode 100644 drivers/gpu/drm/rcar-du/rcar_du_lvds.h delete mode 100644 drivers/gpu/drm/rcar-du/rcar_du_vga.c delete mode 100644 drivers/gpu/drm/rcar-du/rcar_du_vga.h diff --git a/drivers/gpu/drm/rcar-du/Makefile b/drivers/gpu/drm/rcar-du/Makefile index 45a8479aed0..57b0fe1fa66 100644 --- a/drivers/gpu/drm/rcar-du/Makefile +++ b/drivers/gpu/drm/rcar-du/Makefile @@ -1,10 +1,9 @@ rcar-du-drm-y := rcar_du_crtc.o \ rcar_du_drv.o \ + rcar_du_encoder.o \ rcar_du_kms.o \ - rcar_du_lvds.o \ rcar_du_lvdscon.o \ rcar_du_plane.o \ - rcar_du_vga.o \ rcar_du_vgacon.o obj-$(CONFIG_DRM_RCAR_DU) += rcar-du-drm.o diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index aefc8a0cbcb..03dd7018dde 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -23,10 +23,8 @@ #include "rcar_du_crtc.h" #include "rcar_du_drv.h" #include "rcar_du_kms.h" -#include "rcar_du_lvds.h" #include "rcar_du_plane.h" #include "rcar_du_regs.h" -#include "rcar_du_vga.h" #define to_rcar_crtc(c) container_of(c, struct rcar_du_crtc, crtc) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c new file mode 100644 index 00000000000..15a56433c80 --- /dev/null +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c @@ -0,0 +1,148 @@ +/* + * rcar_du_encoder.c -- R-Car Display Unit Encoder + * + * Copyright (C) 2013 Renesas Corporation + * + * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include +#include +#include + +#include "rcar_du_drv.h" +#include "rcar_du_encoder.h" +#include "rcar_du_kms.h" +#include "rcar_du_lvdscon.h" +#include "rcar_du_vgacon.h" + +/* ----------------------------------------------------------------------------- + * Common connector functions + */ + +struct drm_encoder * +rcar_du_connector_best_encoder(struct drm_connector *connector) +{ + struct rcar_du_connector *rcon = to_rcar_connector(connector); + + return &rcon->encoder->encoder; +} + +/* ----------------------------------------------------------------------------- + * Encoder + */ + +static void rcar_du_encoder_dpms(struct drm_encoder *encoder, int mode) +{ +} + +static bool rcar_du_encoder_mode_fixup(struct drm_encoder *encoder, + const struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + const struct drm_display_mode *panel_mode; + struct drm_device *dev = encoder->dev; + struct drm_connector *connector; + bool found = false; + + /* DAC encoders have currently no restriction on the mode. */ + if (encoder->encoder_type == DRM_MODE_ENCODER_DAC) + return true; + + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + if (connector->encoder == encoder) { + found = true; + break; + } + } + + if (!found) { + dev_dbg(dev->dev, "mode_fixup: no connector found\n"); + return false; + } + + if (list_empty(&connector->modes)) { + dev_dbg(dev->dev, "mode_fixup: empty modes list\n"); + return false; + } + + panel_mode = list_first_entry(&connector->modes, + struct drm_display_mode, head); + + /* We're not allowed to modify the resolution. */ + if (mode->hdisplay != panel_mode->hdisplay || + mode->vdisplay != panel_mode->vdisplay) + return false; + + /* The flat panel mode is fixed, just copy it to the adjusted mode. */ + drm_mode_copy(adjusted_mode, panel_mode); + + return true; +} + +static void rcar_du_encoder_mode_prepare(struct drm_encoder *encoder) +{ +} + +static void rcar_du_encoder_mode_commit(struct drm_encoder *encoder) +{ +} + +static void rcar_du_encoder_mode_set(struct drm_encoder *encoder, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct rcar_du_encoder *renc = to_rcar_encoder(encoder); + + rcar_du_crtc_route_output(encoder->crtc, renc->output); +} + +static const struct drm_encoder_helper_funcs encoder_helper_funcs = { + .dpms = rcar_du_encoder_dpms, + .mode_fixup = rcar_du_encoder_mode_fixup, + .prepare = rcar_du_encoder_mode_prepare, + .commit = rcar_du_encoder_mode_commit, + .mode_set = rcar_du_encoder_mode_set, +}; + +static const struct drm_encoder_funcs encoder_funcs = { + .destroy = drm_encoder_cleanup, +}; + +int rcar_du_encoder_init(struct rcar_du_device *rcdu, + enum rcar_du_encoder_type type, unsigned int output, + const struct rcar_du_encoder_data *data) +{ + struct rcar_du_encoder *renc; + int ret; + + renc = devm_kzalloc(rcdu->dev, sizeof(*renc), GFP_KERNEL); + if (renc == NULL) + return -ENOMEM; + + renc->output = output; + + ret = drm_encoder_init(rcdu->ddev, &renc->encoder, &encoder_funcs, + type); + if (ret < 0) + return ret; + + drm_encoder_helper_add(&renc->encoder, &encoder_helper_funcs); + + switch (type) { + case RCAR_DU_ENCODER_LVDS: + return rcar_du_lvds_connector_init(rcdu, renc, + &data->u.lvds.panel); + + case RCAR_DU_ENCODER_VGA: + return rcar_du_vga_connector_init(rcdu, renc); + + default: + return -EINVAL; + } +} diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.h b/drivers/gpu/drm/rcar-du/rcar_du_encoder.h new file mode 100644 index 00000000000..4f76e16bca8 --- /dev/null +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.h @@ -0,0 +1,45 @@ +/* + * rcar_du_encoder.h -- R-Car Display Unit Encoder + * + * Copyright (C) 2013 Renesas Corporation + * + * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef __RCAR_DU_ENCODER_H__ +#define __RCAR_DU_ENCODER_H__ + +#include + +struct rcar_du_device; +struct rcar_du_encoder_data; + +struct rcar_du_encoder { + struct drm_encoder encoder; + unsigned int output; +}; + +#define to_rcar_encoder(e) \ + container_of(e, struct rcar_du_encoder, encoder) + +struct rcar_du_connector { + struct drm_connector connector; + struct rcar_du_encoder *encoder; +}; + +#define to_rcar_connector(c) \ + container_of(c, struct rcar_du_connector, connector) + +struct drm_encoder * +rcar_du_connector_best_encoder(struct drm_connector *connector); + +int rcar_du_encoder_init(struct rcar_du_device *rcdu, + enum rcar_du_encoder_type type, unsigned int output, + const struct rcar_du_encoder_data *data); + +#endif /* __RCAR_DU_ENCODER_H__ */ diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index d30c2e29bee..3f8483cc048 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -19,10 +19,9 @@ #include "rcar_du_crtc.h" #include "rcar_du_drv.h" +#include "rcar_du_encoder.h" #include "rcar_du_kms.h" -#include "rcar_du_lvds.h" #include "rcar_du_regs.h" -#include "rcar_du_vga.h" /* ----------------------------------------------------------------------------- * Format helpers @@ -105,35 +104,6 @@ const struct rcar_du_format_info *rcar_du_format_info(u32 fourcc) return NULL; } -/* ----------------------------------------------------------------------------- - * Common connector and encoder functions - */ - -struct drm_encoder * -rcar_du_connector_best_encoder(struct drm_connector *connector) -{ - struct rcar_du_connector *rcon = to_rcar_connector(connector); - - return &rcon->encoder->encoder; -} - -void rcar_du_encoder_mode_prepare(struct drm_encoder *encoder) -{ -} - -void rcar_du_encoder_mode_set(struct drm_encoder *encoder, - struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - struct rcar_du_encoder *renc = to_rcar_encoder(encoder); - - rcar_du_crtc_route_output(encoder->crtc, renc->output); -} - -void rcar_du_encoder_mode_commit(struct drm_encoder *encoder) -{ -} - /* ----------------------------------------------------------------------------- * Frame buffer */ @@ -221,6 +191,9 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) const struct rcar_du_encoder_data *pdata = &rcdu->pdata->encoders[i]; + if (pdata->encoder == RCAR_DU_ENCODER_UNUSED) + continue; + if (pdata->output >= ARRAY_SIZE(rcdu->crtcs)) { dev_warn(rcdu->dev, "encoder %u references unexisting output %u, skipping\n", @@ -228,18 +201,8 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) continue; } - switch (pdata->encoder) { - case RCAR_DU_ENCODER_VGA: - rcar_du_vga_init(rcdu, &pdata->u.vga, pdata->output); - break; - - case RCAR_DU_ENCODER_LVDS: - rcar_du_lvds_init(rcdu, &pdata->u.lvds, pdata->output); - break; - - default: - break; - } + rcar_du_encoder_init(rcdu, pdata->encoder, pdata->output, + pdata); } /* Set the possible CRTCs and possible clones. All encoders can be diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.h b/drivers/gpu/drm/rcar-du/rcar_du_kms.h index dba47226348..5750e6af565 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.h @@ -16,8 +16,9 @@ #include -#include - +struct drm_file; +struct drm_device; +struct drm_mode_create_dumb; struct rcar_du_device; struct rcar_du_format_info { @@ -28,32 +29,8 @@ struct rcar_du_format_info { unsigned int edf; }; -struct rcar_du_encoder { - struct drm_encoder encoder; - unsigned int output; -}; - -#define to_rcar_encoder(e) \ - container_of(e, struct rcar_du_encoder, encoder) - -struct rcar_du_connector { - struct drm_connector connector; - struct rcar_du_encoder *encoder; -}; - -#define to_rcar_connector(c) \ - container_of(c, struct rcar_du_connector, connector) - const struct rcar_du_format_info *rcar_du_format_info(u32 fourcc); -struct drm_encoder * -rcar_du_connector_best_encoder(struct drm_connector *connector); -void rcar_du_encoder_mode_prepare(struct drm_encoder *encoder); -void rcar_du_encoder_mode_set(struct drm_encoder *encoder, - struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode); -void rcar_du_encoder_mode_commit(struct drm_encoder *encoder); - int rcar_du_modeset_init(struct rcar_du_device *rcdu); int rcar_du_dumb_create(struct drm_file *file, struct drm_device *dev, diff --git a/drivers/gpu/drm/rcar-du/rcar_du_lvds.c b/drivers/gpu/drm/rcar-du/rcar_du_lvds.c deleted file mode 100644 index 82e515741f8..00000000000 --- a/drivers/gpu/drm/rcar-du/rcar_du_lvds.c +++ /dev/null @@ -1,100 +0,0 @@ -/* - * rcar_du_lvds.c -- R-Car Display Unit LVDS Encoder - * - * Copyright (C) 2013 Renesas Corporation - * - * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include -#include -#include - -#include "rcar_du_drv.h" -#include "rcar_du_kms.h" -#include "rcar_du_lvds.h" -#include "rcar_du_lvdscon.h" - -static void rcar_du_lvds_encoder_dpms(struct drm_encoder *encoder, int mode) -{ -} - -static bool rcar_du_lvds_encoder_mode_fixup(struct drm_encoder *encoder, - const struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - const struct drm_display_mode *panel_mode; - struct drm_device *dev = encoder->dev; - struct drm_connector *connector; - bool found = false; - - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { - if (connector->encoder == encoder) { - found = true; - break; - } - } - - if (!found) { - dev_dbg(dev->dev, "mode_fixup: no connector found\n"); - return false; - } - - if (list_empty(&connector->modes)) { - dev_dbg(dev->dev, "mode_fixup: empty modes list\n"); - return false; - } - - panel_mode = list_first_entry(&connector->modes, - struct drm_display_mode, head); - - /* We're not allowed to modify the resolution. */ - if (mode->hdisplay != panel_mode->hdisplay || - mode->vdisplay != panel_mode->vdisplay) - return false; - - /* The flat panel mode is fixed, just copy it to the adjusted mode. */ - drm_mode_copy(adjusted_mode, panel_mode); - - return true; -} - -static const struct drm_encoder_helper_funcs encoder_helper_funcs = { - .dpms = rcar_du_lvds_encoder_dpms, - .mode_fixup = rcar_du_lvds_encoder_mode_fixup, - .prepare = rcar_du_encoder_mode_prepare, - .commit = rcar_du_encoder_mode_commit, - .mode_set = rcar_du_encoder_mode_set, -}; - -static const struct drm_encoder_funcs encoder_funcs = { - .destroy = drm_encoder_cleanup, -}; - -int rcar_du_lvds_init(struct rcar_du_device *rcdu, - const struct rcar_du_encoder_lvds_data *data, - unsigned int output) -{ - struct rcar_du_encoder *renc; - int ret; - - renc = devm_kzalloc(rcdu->dev, sizeof(*renc), GFP_KERNEL); - if (renc == NULL) - return -ENOMEM; - - renc->output = output; - - ret = drm_encoder_init(rcdu->ddev, &renc->encoder, &encoder_funcs, - DRM_MODE_ENCODER_LVDS); - if (ret < 0) - return ret; - - drm_encoder_helper_add(&renc->encoder, &encoder_helper_funcs); - - return rcar_du_lvds_connector_init(rcdu, renc, &data->panel); -} diff --git a/drivers/gpu/drm/rcar-du/rcar_du_lvds.h b/drivers/gpu/drm/rcar-du/rcar_du_lvds.h deleted file mode 100644 index b47f8328e10..00000000000 --- a/drivers/gpu/drm/rcar-du/rcar_du_lvds.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * rcar_du_lvds.h -- R-Car Display Unit LVDS Encoder and Connector - * - * Copyright (C) 2013 Renesas Corporation - * - * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#ifndef __RCAR_DU_LVDS_H__ -#define __RCAR_DU_LVDS_H__ - -struct rcar_du_device; -struct rcar_du_encoder_lvds_data; - -int rcar_du_lvds_init(struct rcar_du_device *rcdu, - const struct rcar_du_encoder_lvds_data *data, - unsigned int output); - -#endif /* __RCAR_DU_LVDS_H__ */ diff --git a/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c b/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c index 6cfcc9438c6..4f3ba93cd91 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_lvdscon.c @@ -16,6 +16,7 @@ #include #include "rcar_du_drv.h" +#include "rcar_du_encoder.h" #include "rcar_du_kms.h" #include "rcar_du_lvdscon.h" diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vga.c b/drivers/gpu/drm/rcar-du/rcar_du_vga.c deleted file mode 100644 index 369ab32d565..00000000000 --- a/drivers/gpu/drm/rcar-du/rcar_du_vga.c +++ /dev/null @@ -1,67 +0,0 @@ -/* - * rcar_du_vga.c -- R-Car Display Unit VGA DAC - * - * Copyright (C) 2013 Renesas Corporation - * - * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include -#include -#include - -#include "rcar_du_drv.h" -#include "rcar_du_kms.h" -#include "rcar_du_vga.h" -#include "rcar_du_vgacon.h" - -static void rcar_du_vga_encoder_dpms(struct drm_encoder *encoder, int mode) -{ -} - -static bool rcar_du_vga_encoder_mode_fixup(struct drm_encoder *encoder, - const struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - return true; -} - -static const struct drm_encoder_helper_funcs encoder_helper_funcs = { - .dpms = rcar_du_vga_encoder_dpms, - .mode_fixup = rcar_du_vga_encoder_mode_fixup, - .prepare = rcar_du_encoder_mode_prepare, - .commit = rcar_du_encoder_mode_commit, - .mode_set = rcar_du_encoder_mode_set, -}; - -static const struct drm_encoder_funcs encoder_funcs = { - .destroy = drm_encoder_cleanup, -}; - -int rcar_du_vga_init(struct rcar_du_device *rcdu, - const struct rcar_du_encoder_vga_data *data, - unsigned int output) -{ - struct rcar_du_encoder *renc; - int ret; - - renc = devm_kzalloc(rcdu->dev, sizeof(*renc), GFP_KERNEL); - if (renc == NULL) - return -ENOMEM; - - renc->output = output; - - ret = drm_encoder_init(rcdu->ddev, &renc->encoder, &encoder_funcs, - DRM_MODE_ENCODER_DAC); - if (ret < 0) - return ret; - - drm_encoder_helper_add(&renc->encoder, &encoder_helper_funcs); - - return rcar_du_vga_connector_init(rcdu, renc); -} diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vga.h b/drivers/gpu/drm/rcar-du/rcar_du_vga.h deleted file mode 100644 index b969b2075b5..00000000000 --- a/drivers/gpu/drm/rcar-du/rcar_du_vga.h +++ /dev/null @@ -1,24 +0,0 @@ -/* - * rcar_du_vga.h -- R-Car Display Unit VGA DAC - * - * Copyright (C) 2013 Renesas Corporation - * - * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#ifndef __RCAR_DU_VGA_H__ -#define __RCAR_DU_VGA_H__ - -struct rcar_du_device; -struct rcar_du_encoder_vga_data; - -int rcar_du_vga_init(struct rcar_du_device *rcdu, - const struct rcar_du_encoder_vga_data *data, - unsigned int output); - -#endif /* __RCAR_DU_VGA_H__ */ diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c b/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c index 2ee32033361..36105db9bda 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c @@ -16,6 +16,7 @@ #include #include "rcar_du_drv.h" +#include "rcar_du_encoder.h" #include "rcar_du_kms.h" #include "rcar_du_vgacon.h" -- cgit v1.2.3 From 9194731c5f9b2664c882a515b3398a29384a6864 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sun, 16 Jun 2013 16:25:35 +0200 Subject: drm/rcar-du: Rename platform data fields to match what they describe The struct rcar_du_encoder_data encoder::field describes the encoder type, and the rcar_du_encoder_lvds_data and rcar_du_encoder_vga_data structures describe connector properties. Rename them accordingly. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 2 +- drivers/gpu/drm/rcar-du/rcar_du_encoder.h | 3 ++- drivers/gpu/drm/rcar-du/rcar_du_kms.c | 5 ++--- include/linux/platform_data/rcar-du.h | 19 +++++++++++++------ 4 files changed, 18 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c index 15a56433c80..0d0375c7ee4 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c @@ -137,7 +137,7 @@ int rcar_du_encoder_init(struct rcar_du_device *rcdu, switch (type) { case RCAR_DU_ENCODER_LVDS: return rcar_du_lvds_connector_init(rcdu, renc, - &data->u.lvds.panel); + &data->connector.lvds.panel); case RCAR_DU_ENCODER_VGA: return rcar_du_vga_connector_init(rcdu, renc); diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.h b/drivers/gpu/drm/rcar-du/rcar_du_encoder.h index 4f76e16bca8..08cde129389 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.h @@ -14,10 +14,11 @@ #ifndef __RCAR_DU_ENCODER_H__ #define __RCAR_DU_ENCODER_H__ +#include + #include struct rcar_du_device; -struct rcar_du_encoder_data; struct rcar_du_encoder { struct drm_encoder encoder; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index 3f8483cc048..a8eef167d51 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -191,7 +191,7 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) const struct rcar_du_encoder_data *pdata = &rcdu->pdata->encoders[i]; - if (pdata->encoder == RCAR_DU_ENCODER_UNUSED) + if (pdata->type == RCAR_DU_ENCODER_UNUSED) continue; if (pdata->output >= ARRAY_SIZE(rcdu->crtcs)) { @@ -201,8 +201,7 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) continue; } - rcar_du_encoder_init(rcdu, pdata->encoder, pdata->output, - pdata); + rcar_du_encoder_init(rcdu, pdata->type, pdata->output, pdata); } /* Set the possible CRTCs and possible clones. All encoders can be diff --git a/include/linux/platform_data/rcar-du.h b/include/linux/platform_data/rcar-du.h index 80587fdbba3..64cd8635e6e 100644 --- a/include/linux/platform_data/rcar-du.h +++ b/include/linux/platform_data/rcar-du.h @@ -28,22 +28,29 @@ struct rcar_du_panel_data { struct drm_mode_modeinfo mode; }; -struct rcar_du_encoder_lvds_data { +struct rcar_du_connector_lvds_data { struct rcar_du_panel_data panel; }; -struct rcar_du_encoder_vga_data { +struct rcar_du_connector_vga_data { /* TODO: Add DDC information for EDID retrieval */ }; +/* + * struct rcar_du_encoder_data - Encoder platform data + * @type: the encoder type (RCAR_DU_ENCODER_*) + * @output: the DU output the connector is connected to + * @connector.lvds: platform data for LVDS connectors + * @connector.vga: platform data for VGA connectors + */ struct rcar_du_encoder_data { - enum rcar_du_encoder_type encoder; + enum rcar_du_encoder_type type; unsigned int output; union { - struct rcar_du_encoder_lvds_data lvds; - struct rcar_du_encoder_vga_data vga; - } u; + struct rcar_du_connector_lvds_data lvds; + struct rcar_du_connector_vga_data vga; + } connector; }; struct rcar_du_platform_data { -- cgit v1.2.3 From ae425b6a77a1118b1b4f594efe4aaa4243bf222b Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sun, 16 Jun 2013 21:02:49 +0200 Subject: drm/rcar-du: Create rcar_du_planes structure Move the plane-related fields of struct rcar_du_device to their own structure. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_drv.h | 11 +---------- drivers/gpu/drm/rcar-du/rcar_du_plane.h | 17 +++++++++++++++-- 2 files changed, 16 insertions(+), 12 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index 7d2320fb948..0305c21d71f 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h @@ -15,7 +15,6 @@ #define __RCAR_DU_DRV_H__ #include -#include #include #include "rcar_du_crtc.h" @@ -49,15 +48,7 @@ struct rcar_du_device { unsigned int used_crtcs; unsigned int num_crtcs; - struct { - struct rcar_du_plane planes[RCAR_DU_NUM_SW_PLANES]; - unsigned int free; - struct mutex lock; - - struct drm_property *alpha; - struct drm_property *colorkey; - struct drm_property *zpos; - } planes; + struct rcar_du_planes planes; }; static inline bool rcar_du_has(struct rcar_du_device *rcdu, diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.h b/drivers/gpu/drm/rcar-du/rcar_du_plane.h index 5397dba2fe5..5c8488ca019 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_plane.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.h @@ -14,8 +14,11 @@ #ifndef __RCAR_DU_PLANE_H__ #define __RCAR_DU_PLANE_H__ -struct drm_crtc; -struct drm_framebuffer; +#include + +#include +#include + struct rcar_du_device; struct rcar_du_format_info; @@ -54,6 +57,16 @@ struct rcar_du_plane { unsigned int dst_y; }; +struct rcar_du_planes { + struct rcar_du_plane planes[RCAR_DU_NUM_SW_PLANES]; + unsigned int free; + struct mutex lock; + + struct drm_property *alpha; + struct drm_property *colorkey; + struct drm_property *zpos; +}; + int rcar_du_plane_init(struct rcar_du_device *rcdu); int rcar_du_plane_register(struct rcar_du_device *rcdu); void rcar_du_plane_setup(struct rcar_du_plane *plane); -- cgit v1.2.3 From 7fe99fda5f5c52a01b2c966aa68341a0b3d8ab33 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sun, 16 Jun 2013 19:18:31 +0200 Subject: drm/rcar-du: Rename rcar_du_plane_(init|register) to rcar_du_planes_* The functions initialize or register all planes, rename them accordingly. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_kms.c | 4 ++-- drivers/gpu/drm/rcar-du/rcar_du_plane.c | 4 ++-- drivers/gpu/drm/rcar-du/rcar_du_plane.h | 5 +++-- 3 files changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index a8eef167d51..a1343fbde57 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -174,7 +174,7 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) rcdu->ddev->mode_config.max_height = 2047; rcdu->ddev->mode_config.funcs = &rcar_du_mode_config_funcs; - ret = rcar_du_plane_init(rcdu); + ret = rcar_du_planes_init(rcdu); if (ret < 0) return ret; @@ -215,7 +215,7 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) encoder->possible_clones = 1 << 0; } - ret = rcar_du_plane_register(rcdu); + ret = rcar_du_planes_register(rcdu); if (ret < 0) return ret; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/rcar-du/rcar_du_plane.c index 38ebd20e4e8..29f21477ef0 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c @@ -435,7 +435,7 @@ static const uint32_t formats[] = { DRM_FORMAT_NV16, }; -int rcar_du_plane_init(struct rcar_du_device *rcdu) +int rcar_du_planes_init(struct rcar_du_device *rcdu) { unsigned int i; @@ -475,7 +475,7 @@ int rcar_du_plane_init(struct rcar_du_device *rcdu) return 0; } -int rcar_du_plane_register(struct rcar_du_device *rcdu) +int rcar_du_planes_register(struct rcar_du_device *rcdu) { unsigned int i; int ret; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.h b/drivers/gpu/drm/rcar-du/rcar_du_plane.h index 5c8488ca019..bcf6f76f56a 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_plane.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.h @@ -67,8 +67,9 @@ struct rcar_du_planes { struct drm_property *zpos; }; -int rcar_du_plane_init(struct rcar_du_device *rcdu); -int rcar_du_plane_register(struct rcar_du_device *rcdu); +int rcar_du_planes_init(struct rcar_du_device *rcdu); +int rcar_du_planes_register(struct rcar_du_device *rcdu); + void rcar_du_plane_setup(struct rcar_du_plane *plane); void rcar_du_plane_update_base(struct rcar_du_plane *plane); void rcar_du_plane_compute_base(struct rcar_du_plane *plane, -- cgit v1.2.3 From cb2025d2509ffab1c426509fd9de3d83e40398b9 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sun, 16 Jun 2013 21:01:02 +0200 Subject: drm/rcar-du: Introduce CRTCs groups The R8A7779 DU is split in per-CRTC resources (scan-out engine, blending unit, timings generator, ...) and device-global resources (start/stop control, planes, ...) shared between the two CRTCs. The R8A7790 introduced a third CRTC with its own set of global resources This would be modeled as two separate DU device instances if it wasn't for a handful or resources that are shared between the three CRTCs (mostly related to input and output routing). For this reason the R8A7790 DU must be modeled as a single device with three CRTCs, two sets of "semi-global" resources, and a few device-global resources. Introduce a new rcar_du_group driver-specific object, without any real counterpart in the DU documentation, that models those semi-global resources. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/Makefile | 1 + drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 92 ++++++------------- drivers/gpu/drm/rcar-du/rcar_du_crtc.h | 5 +- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 46 ---------- drivers/gpu/drm/rcar-du/rcar_du_drv.h | 10 +-- drivers/gpu/drm/rcar-du/rcar_du_group.c | 127 ++++++++++++++++++++++++++ drivers/gpu/drm/rcar-du/rcar_du_group.h | 47 ++++++++++ drivers/gpu/drm/rcar-du/rcar_du_kms.c | 11 ++- drivers/gpu/drm/rcar-du/rcar_du_plane.c | 155 ++++++++++++++++---------------- drivers/gpu/drm/rcar-du/rcar_du_plane.h | 8 +- 10 files changed, 299 insertions(+), 203 deletions(-) create mode 100644 drivers/gpu/drm/rcar-du/rcar_du_group.c create mode 100644 drivers/gpu/drm/rcar-du/rcar_du_group.h diff --git a/drivers/gpu/drm/rcar-du/Makefile b/drivers/gpu/drm/rcar-du/Makefile index 57b0fe1fa66..b9b5e666fbb 100644 --- a/drivers/gpu/drm/rcar-du/Makefile +++ b/drivers/gpu/drm/rcar-du/Makefile @@ -1,6 +1,7 @@ rcar-du-drm-y := rcar_du_crtc.o \ rcar_du_drv.o \ rcar_du_encoder.o \ + rcar_du_group.o \ rcar_du_kms.o \ rcar_du_lvdscon.o \ rcar_du_plane.o \ diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index 03dd7018dde..7784a3ba785 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -30,21 +30,21 @@ static u32 rcar_du_crtc_read(struct rcar_du_crtc *rcrtc, u32 reg) { - struct rcar_du_device *rcdu = rcrtc->crtc.dev->dev_private; + struct rcar_du_device *rcdu = rcrtc->group->dev; return rcar_du_read(rcdu, rcrtc->mmio_offset + reg); } static void rcar_du_crtc_write(struct rcar_du_crtc *rcrtc, u32 reg, u32 data) { - struct rcar_du_device *rcdu = rcrtc->crtc.dev->dev_private; + struct rcar_du_device *rcdu = rcrtc->group->dev; rcar_du_write(rcdu, rcrtc->mmio_offset + reg, data); } static void rcar_du_crtc_clr(struct rcar_du_crtc *rcrtc, u32 reg, u32 clr) { - struct rcar_du_device *rcdu = rcrtc->crtc.dev->dev_private; + struct rcar_du_device *rcdu = rcrtc->group->dev; rcar_du_write(rcdu, rcrtc->mmio_offset + reg, rcar_du_read(rcdu, rcrtc->mmio_offset + reg) & ~clr); @@ -52,7 +52,7 @@ static void rcar_du_crtc_clr(struct rcar_du_crtc *rcrtc, u32 reg, u32 clr) static void rcar_du_crtc_set(struct rcar_du_crtc *rcrtc, u32 reg, u32 set) { - struct rcar_du_device *rcdu = rcrtc->crtc.dev->dev_private; + struct rcar_du_device *rcdu = rcrtc->group->dev; rcar_du_write(rcdu, rcrtc->mmio_offset + reg, rcar_du_read(rcdu, rcrtc->mmio_offset + reg) | set); @@ -61,7 +61,7 @@ static void rcar_du_crtc_set(struct rcar_du_crtc *rcrtc, u32 reg, u32 set) static void rcar_du_crtc_clr_set(struct rcar_du_crtc *rcrtc, u32 reg, u32 clr, u32 set) { - struct rcar_du_device *rcdu = rcrtc->crtc.dev->dev_private; + struct rcar_du_device *rcdu = rcrtc->group->dev; u32 value = rcar_du_read(rcdu, rcrtc->mmio_offset + reg); rcar_du_write(rcdu, rcrtc->mmio_offset + reg, (value & ~clr) | set); @@ -69,14 +69,13 @@ static void rcar_du_crtc_clr_set(struct rcar_du_crtc *rcrtc, u32 reg, static int rcar_du_crtc_get(struct rcar_du_crtc *rcrtc) { - struct rcar_du_device *rcdu = rcrtc->crtc.dev->dev_private; int ret; ret = clk_prepare_enable(rcrtc->clock); if (ret < 0) return ret; - ret = rcar_du_get(rcdu); + ret = rcar_du_group_get(rcrtc->group); if (ret < 0) clk_disable_unprepare(rcrtc->clock); @@ -85,17 +84,14 @@ static int rcar_du_crtc_get(struct rcar_du_crtc *rcrtc) static void rcar_du_crtc_put(struct rcar_du_crtc *rcrtc) { - struct rcar_du_device *rcdu = rcrtc->crtc.dev->dev_private; - - rcar_du_put(rcdu); + rcar_du_group_put(rcrtc->group); clk_disable_unprepare(rcrtc->clock); } static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc) { - struct drm_crtc *crtc = &rcrtc->crtc; - struct rcar_du_device *rcdu = crtc->dev->dev_private; - const struct drm_display_mode *mode = &crtc->mode; + const struct drm_display_mode *mode = &rcrtc->crtc.mode; + struct rcar_du_device *rcdu = rcrtc->group->dev; unsigned long clk; u32 value; u32 div; @@ -136,7 +132,7 @@ static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc) static void rcar_du_crtc_set_routing(struct rcar_du_crtc *rcrtc) { - struct rcar_du_device *rcdu = rcrtc->crtc.dev->dev_private; + struct rcar_du_device *rcdu = rcrtc->group->dev; u32 dorcr = rcar_du_read(rcdu, DORCR); dorcr &= ~(DORCR_PG2T | DORCR_DK2S | DORCR_PG2D_MASK); @@ -153,36 +149,6 @@ static void rcar_du_crtc_set_routing(struct rcar_du_crtc *rcrtc) rcar_du_write(rcdu, DORCR, dorcr); } -static void __rcar_du_start_stop(struct rcar_du_device *rcdu, bool start) -{ - rcar_du_write(rcdu, DSYSR, - (rcar_du_read(rcdu, DSYSR) & ~(DSYSR_DRES | DSYSR_DEN)) | - (start ? DSYSR_DEN : DSYSR_DRES)); -} - -static void rcar_du_start_stop(struct rcar_du_device *rcdu, bool start) -{ - /* Many of the configuration bits are only updated when the display - * reset (DRES) bit in DSYSR is set to 1, disabling *both* CRTCs. Some - * of those bits could be pre-configured, but others (especially the - * bits related to plane assignment to display timing controllers) need - * to be modified at runtime. - * - * Restart the display controller if a start is requested. Sorry for the - * flicker. It should be possible to move most of the "DRES-update" bits - * setup to driver initialization time and minimize the number of cases - * when the display controller will have to be restarted. - */ - if (start) { - if (rcdu->used_crtcs++ != 0) - __rcar_du_start_stop(rcdu, false); - __rcar_du_start_stop(rcdu, true); - } else { - if (--rcdu->used_crtcs == 0) - __rcar_du_start_stop(rcdu, false); - } -} - void rcar_du_crtc_route_output(struct drm_crtc *crtc, unsigned int output) { struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc); @@ -195,8 +161,8 @@ void rcar_du_crtc_route_output(struct drm_crtc *crtc, unsigned int output) void rcar_du_crtc_update_planes(struct drm_crtc *crtc) { - struct rcar_du_device *rcdu = crtc->dev->dev_private; struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc); + struct rcar_du_device *rcdu = rcrtc->group->dev; struct rcar_du_plane *planes[RCAR_DU_NUM_HW_PLANES]; unsigned int num_planes = 0; unsigned int prio = 0; @@ -204,8 +170,8 @@ void rcar_du_crtc_update_planes(struct drm_crtc *crtc) u32 dptsr = 0; u32 dspr = 0; - for (i = 0; i < ARRAY_SIZE(rcdu->planes.planes); ++i) { - struct rcar_du_plane *plane = &rcdu->planes.planes[i]; + for (i = 0; i < ARRAY_SIZE(rcrtc->group->planes.planes); ++i) { + struct rcar_du_plane *plane = &rcrtc->group->planes.planes[i]; unsigned int j; if (plane->crtc != &rcrtc->crtc || !plane->enabled) @@ -254,10 +220,8 @@ void rcar_du_crtc_update_planes(struct drm_crtc *crtc) */ if (value != dptsr) { rcar_du_write(rcdu, DPTSR, dptsr); - if (rcdu->used_crtcs) { - __rcar_du_start_stop(rcdu, false); - __rcar_du_start_stop(rcdu, true); - } + if (rcrtc->group->used_crtcs) + rcar_du_group_restart(rcrtc->group); } } @@ -267,7 +231,6 @@ void rcar_du_crtc_update_planes(struct drm_crtc *crtc) static void rcar_du_crtc_start(struct rcar_du_crtc *rcrtc) { struct drm_crtc *crtc = &rcrtc->crtc; - struct rcar_du_device *rcdu = crtc->dev->dev_private; unsigned int i; if (rcrtc->started) @@ -284,14 +247,14 @@ static void rcar_du_crtc_start(struct rcar_du_crtc *rcrtc) rcar_du_crtc_set_display_timing(rcrtc); rcar_du_crtc_set_routing(rcrtc); - mutex_lock(&rcdu->planes.lock); + mutex_lock(&rcrtc->group->planes.lock); rcrtc->plane->enabled = true; rcar_du_crtc_update_planes(crtc); - mutex_unlock(&rcdu->planes.lock); + mutex_unlock(&rcrtc->group->planes.lock); /* Setup planes. */ - for (i = 0; i < ARRAY_SIZE(rcdu->planes.planes); ++i) { - struct rcar_du_plane *plane = &rcdu->planes.planes[i]; + for (i = 0; i < ARRAY_SIZE(rcrtc->group->planes.planes); ++i) { + struct rcar_du_plane *plane = &rcrtc->group->planes.planes[i]; if (plane->crtc != crtc || !plane->enabled) continue; @@ -305,7 +268,7 @@ static void rcar_du_crtc_start(struct rcar_du_crtc *rcrtc) */ rcar_du_crtc_clr_set(rcrtc, DSYSR, DSYSR_TVM_MASK, DSYSR_TVM_MASTER); - rcar_du_start_stop(rcdu, true); + rcar_du_group_start_stop(rcrtc->group, true); rcrtc->started = true; } @@ -313,22 +276,21 @@ static void rcar_du_crtc_start(struct rcar_du_crtc *rcrtc) static void rcar_du_crtc_stop(struct rcar_du_crtc *rcrtc) { struct drm_crtc *crtc = &rcrtc->crtc; - struct rcar_du_device *rcdu = crtc->dev->dev_private; if (!rcrtc->started) return; - mutex_lock(&rcdu->planes.lock); + mutex_lock(&rcrtc->group->planes.lock); rcrtc->plane->enabled = false; rcar_du_crtc_update_planes(crtc); - mutex_unlock(&rcdu->planes.lock); + mutex_unlock(&rcrtc->group->planes.lock); /* Select switch sync mode. This stops display operation and configures * the HSYNC and VSYNC signals as inputs. */ rcar_du_crtc_clr_set(rcrtc, DSYSR, DSYSR_TVM_MASK, DSYSR_TVM_SWITCH); - rcar_du_start_stop(rcdu, false); + rcar_du_group_start_stop(rcrtc->group, false); rcrtc->started = false; } @@ -406,8 +368,8 @@ static int rcar_du_crtc_mode_set(struct drm_crtc *crtc, int x, int y, struct drm_framebuffer *old_fb) { - struct rcar_du_device *rcdu = crtc->dev->dev_private; struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc); + struct rcar_du_device *rcdu = rcrtc->group->dev; const struct rcar_du_format_info *format; int ret; @@ -583,8 +545,9 @@ static const struct drm_crtc_funcs crtc_funcs = { .page_flip = rcar_du_crtc_page_flip, }; -int rcar_du_crtc_create(struct rcar_du_device *rcdu, unsigned int index) +int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int index) { + struct rcar_du_device *rcdu = rgrp->dev; struct platform_device *pdev = to_platform_device(rcdu->dev); struct rcar_du_crtc *rcrtc = &rcdu->crtcs[index]; struct drm_crtc *crtc = &rcrtc->crtc; @@ -608,10 +571,11 @@ int rcar_du_crtc_create(struct rcar_du_device *rcdu, unsigned int index) return PTR_ERR(rcrtc->clock); } + rcrtc->group = rgrp; rcrtc->mmio_offset = index ? DISP2_REG_OFFSET : 0; rcrtc->index = index; rcrtc->dpms = DRM_MODE_DPMS_OFF; - rcrtc->plane = &rcdu->planes.planes[index]; + rcrtc->plane = &rgrp->planes.planes[index]; rcrtc->plane->crtc = crtc; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h index 5b69e98a3b9..542a7feceb2 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h @@ -19,7 +19,7 @@ #include #include -struct rcar_du_device; +struct rcar_du_group; struct rcar_du_plane; struct rcar_du_crtc { @@ -34,10 +34,11 @@ struct rcar_du_crtc { unsigned int outputs; int dpms; + struct rcar_du_group *group; struct rcar_du_plane *plane; }; -int rcar_du_crtc_create(struct rcar_du_device *rcdu, unsigned int index); +int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int index); void rcar_du_crtc_enable_vblank(struct rcar_du_crtc *rcrtc, bool enable); void rcar_du_crtc_cancel_page_flip(struct rcar_du_crtc *rcrtc, struct drm_file *file); diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index 5f82e046f83..cdc363b6cd3 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -28,52 +28,6 @@ #include "rcar_du_kms.h" #include "rcar_du_regs.h" -/* ----------------------------------------------------------------------------- - * Core device operations - */ - -/* - * rcar_du_get - Acquire a reference to the DU - * - * Acquiring the first reference setups core registers. A reference must be - * held before accessing any hardware registers. - * - * This function must be called with the DRM mode_config lock held. - * - * Return 0 in case of success or a negative error code otherwise. - */ -int rcar_du_get(struct rcar_du_device *rcdu) -{ - if (rcdu->use_count) - goto done; - - /* Enable extended features */ - rcar_du_write(rcdu, DEFR, DEFR_CODE | DEFR_DEFE); - rcar_du_write(rcdu, DEFR2, DEFR2_CODE | DEFR2_DEFE2G); - rcar_du_write(rcdu, DEFR3, DEFR3_CODE | DEFR3_DEFE3); - rcar_du_write(rcdu, DEFR4, DEFR4_CODE); - rcar_du_write(rcdu, DEFR5, DEFR5_CODE | DEFR5_DEFE5); - - /* Use DS1PR and DS2PR to configure planes priorities and connects the - * superposition 0 to DU0 pins. DU1 pins will be configured dynamically. - */ - rcar_du_write(rcdu, DORCR, DORCR_PG1D_DS1 | DORCR_DPRS); - -done: - rcdu->use_count++; - return 0; -} - -/* - * rcar_du_put - Release a reference to the DU - * - * This function must be called with the DRM mode_config lock held. - */ -void rcar_du_put(struct rcar_du_device *rcdu) -{ - --rcdu->use_count; -} - /* ----------------------------------------------------------------------------- * DRM operations */ diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index 0305c21d71f..5b57a2f9b52 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h @@ -18,11 +18,12 @@ #include #include "rcar_du_crtc.h" -#include "rcar_du_plane.h" +#include "rcar_du_group.h" struct clk; struct device; struct drm_device; +struct rcar_du_device; #define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK (1 << 0) /* Per-CRTC IRQ and clock */ @@ -40,15 +41,13 @@ struct rcar_du_device { const struct rcar_du_device_info *info; void __iomem *mmio; - unsigned int use_count; struct drm_device *ddev; struct rcar_du_crtc crtcs[2]; - unsigned int used_crtcs; unsigned int num_crtcs; - struct rcar_du_planes planes; + struct rcar_du_group group; }; static inline bool rcar_du_has(struct rcar_du_device *rcdu, @@ -57,9 +56,6 @@ static inline bool rcar_du_has(struct rcar_du_device *rcdu, return rcdu->info->features & feature; } -int rcar_du_get(struct rcar_du_device *rcdu); -void rcar_du_put(struct rcar_du_device *rcdu); - static inline u32 rcar_du_read(struct rcar_du_device *rcdu, u32 reg) { return ioread32(rcdu->mmio + reg); diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.c b/drivers/gpu/drm/rcar-du/rcar_du_group.c new file mode 100644 index 00000000000..625b9f44696 --- /dev/null +++ b/drivers/gpu/drm/rcar-du/rcar_du_group.c @@ -0,0 +1,127 @@ +/* + * rcar_du_group.c -- R-Car Display Unit Channels Pair + * + * Copyright (C) 2013 Renesas Corporation + * + * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +/* + * The R8A7779 DU is split in per-CRTC resources (scan-out engine, blending + * unit, timings generator, ...) and device-global resources (start/stop + * control, planes, ...) shared between the two CRTCs. + * + * The R8A7790 introduced a third CRTC with its own set of global resources. + * This would be modeled as two separate DU device instances if it wasn't for + * a handful or resources that are shared between the three CRTCs (mostly + * related to input and output routing). For this reason the R8A7790 DU must be + * modeled as a single device with three CRTCs, two sets of "semi-global" + * resources, and a few device-global resources. + * + * The rcar_du_group object is a driver specific object, without any real + * counterpart in the DU documentation, that models those semi-global resources. + */ + +#include + +#include "rcar_du_drv.h" +#include "rcar_du_group.h" +#include "rcar_du_regs.h" + +static u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg) +{ + return rcar_du_read(rgrp->dev, rgrp->mmio_offset + reg); +} + +static void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data) +{ + rcar_du_write(rgrp->dev, rgrp->mmio_offset + reg, data); +} + +static void rcar_du_group_setup(struct rcar_du_group *rgrp) +{ + /* Enable extended features */ + rcar_du_group_write(rgrp, DEFR, DEFR_CODE | DEFR_DEFE); + rcar_du_group_write(rgrp, DEFR2, DEFR2_CODE | DEFR2_DEFE2G); + rcar_du_group_write(rgrp, DEFR3, DEFR3_CODE | DEFR3_DEFE3); + rcar_du_group_write(rgrp, DEFR4, DEFR4_CODE); + rcar_du_group_write(rgrp, DEFR5, DEFR5_CODE | DEFR5_DEFE5); + + /* Use DS1PR and DS2PR to configure planes priorities and connects the + * superposition 0 to DU0 pins. DU1 pins will be configured dynamically. + */ + rcar_du_group_write(rgrp, DORCR, DORCR_PG1D_DS1 | DORCR_DPRS); +} + +/* + * rcar_du_group_get - Acquire a reference to the DU channels group + * + * Acquiring the first reference setups core registers. A reference must be held + * before accessing any hardware registers. + * + * This function must be called with the DRM mode_config lock held. + * + * Return 0 in case of success or a negative error code otherwise. + */ +int rcar_du_group_get(struct rcar_du_group *rgrp) +{ + if (rgrp->use_count) + goto done; + + rcar_du_group_setup(rgrp); + +done: + rgrp->use_count++; + return 0; +} + +/* + * rcar_du_group_put - Release a reference to the DU + * + * This function must be called with the DRM mode_config lock held. + */ +void rcar_du_group_put(struct rcar_du_group *rgrp) +{ + --rgrp->use_count; +} + +static void __rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start) +{ + rcar_du_group_write(rgrp, DSYSR, + (rcar_du_group_read(rgrp, DSYSR) & ~(DSYSR_DRES | DSYSR_DEN)) | + (start ? DSYSR_DEN : DSYSR_DRES)); +} + +void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start) +{ + /* Many of the configuration bits are only updated when the display + * reset (DRES) bit in DSYSR is set to 1, disabling *both* CRTCs. Some + * of those bits could be pre-configured, but others (especially the + * bits related to plane assignment to display timing controllers) need + * to be modified at runtime. + * + * Restart the display controller if a start is requested. Sorry for the + * flicker. It should be possible to move most of the "DRES-update" bits + * setup to driver initialization time and minimize the number of cases + * when the display controller will have to be restarted. + */ + if (start) { + if (rgrp->used_crtcs++ != 0) + __rcar_du_group_start_stop(rgrp, false); + __rcar_du_group_start_stop(rgrp, true); + } else { + if (--rgrp->used_crtcs == 0) + __rcar_du_group_start_stop(rgrp, false); + } +} + +void rcar_du_group_restart(struct rcar_du_group *rgrp) +{ + __rcar_du_group_start_stop(rgrp, false); + __rcar_du_group_start_stop(rgrp, true); +} diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.h b/drivers/gpu/drm/rcar-du/rcar_du_group.h new file mode 100644 index 00000000000..748331bbb8f --- /dev/null +++ b/drivers/gpu/drm/rcar-du/rcar_du_group.h @@ -0,0 +1,47 @@ +/* + * rcar_du_group.c -- R-Car Display Unit Planes and CRTCs Group + * + * Copyright (C) 2013 Renesas Corporation + * + * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef __RCAR_DU_GROUP_H__ +#define __RCAR_DU_GROUP_H__ + +#include "rcar_du_plane.h" + +struct rcar_du_device; + +/* + * struct rcar_du_group - CRTCs and planes group + * @dev: the DU device + * @mmio_offset: registers offset in the device memory map + * @index: group index + * @use_count: number of users of the group (rcar_du_group_(get|put)) + * @used_crtcs: number of CRTCs currently in use + * @planes: planes handled by the group + */ +struct rcar_du_group { + struct rcar_du_device *dev; + unsigned int mmio_offset; + unsigned int index; + + unsigned int use_count; + unsigned int used_crtcs; + + struct rcar_du_planes planes; +}; + +int rcar_du_group_get(struct rcar_du_group *rgrp); +void rcar_du_group_put(struct rcar_du_group *rgrp); +void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start); +void rcar_du_group_restart(struct rcar_du_group *rgrp); + + +#endif /* __RCAR_DU_GROUP_H__ */ diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index a1343fbde57..c32e0f9d482 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -174,17 +174,20 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) rcdu->ddev->mode_config.max_height = 2047; rcdu->ddev->mode_config.funcs = &rcar_du_mode_config_funcs; - ret = rcar_du_planes_init(rcdu); + rcdu->group.dev = rcdu; + rcdu->group.index = 0; + rcdu->group.used_crtcs = 0; + + ret = rcar_du_planes_init(&rcdu->group); if (ret < 0) return ret; for (i = 0; i < ARRAY_SIZE(rcdu->crtcs); ++i) { - ret = rcar_du_crtc_create(rcdu, i); + ret = rcar_du_crtc_create(&rcdu->group, i); if (ret < 0) return ret; } - rcdu->used_crtcs = 0; rcdu->num_crtcs = i; for (i = 0; i < rcdu->pdata->num_encoders; ++i) { @@ -215,7 +218,7 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) encoder->possible_clones = 1 << 0; } - ret = rcar_du_planes_register(rcdu); + ret = rcar_du_planes_register(&rcdu->group); if (ret < 0) return ret; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/rcar-du/rcar_du_plane.c index 29f21477ef0..1e9cf7c92f8 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c @@ -36,71 +36,73 @@ static inline struct rcar_du_plane *to_rcar_plane(struct drm_plane *plane) return container_of(plane, struct rcar_du_kms_plane, plane)->hwplane; } -static u32 rcar_du_plane_read(struct rcar_du_device *rcdu, +static u32 rcar_du_plane_read(struct rcar_du_group *rgrp, unsigned int index, u32 reg) { - return rcar_du_read(rcdu, index * PLANE_OFF + reg); + return rcar_du_read(rgrp->dev, + rgrp->mmio_offset + index * PLANE_OFF + reg); } -static void rcar_du_plane_write(struct rcar_du_device *rcdu, +static void rcar_du_plane_write(struct rcar_du_group *rgrp, unsigned int index, u32 reg, u32 data) { - rcar_du_write(rcdu, index * PLANE_OFF + reg, data); + rcar_du_write(rgrp->dev, rgrp->mmio_offset + index * PLANE_OFF + reg, + data); } int rcar_du_plane_reserve(struct rcar_du_plane *plane, const struct rcar_du_format_info *format) { - struct rcar_du_device *rcdu = plane->dev; + struct rcar_du_group *rgrp = plane->group; unsigned int i; int ret = -EBUSY; - mutex_lock(&rcdu->planes.lock); + mutex_lock(&rgrp->planes.lock); - for (i = 0; i < ARRAY_SIZE(rcdu->planes.planes); ++i) { - if (!(rcdu->planes.free & (1 << i))) + for (i = 0; i < ARRAY_SIZE(rgrp->planes.planes); ++i) { + if (!(rgrp->planes.free & (1 << i))) continue; if (format->planes == 1 || - rcdu->planes.free & (1 << ((i + 1) % 8))) + rgrp->planes.free & (1 << ((i + 1) % 8))) break; } - if (i == ARRAY_SIZE(rcdu->planes.planes)) + if (i == ARRAY_SIZE(rgrp->planes.planes)) goto done; - rcdu->planes.free &= ~(1 << i); + rgrp->planes.free &= ~(1 << i); if (format->planes == 2) - rcdu->planes.free &= ~(1 << ((i + 1) % 8)); + rgrp->planes.free &= ~(1 << ((i + 1) % 8)); plane->hwindex = i; ret = 0; done: - mutex_unlock(&rcdu->planes.lock); + mutex_unlock(&rgrp->planes.lock); return ret; } void rcar_du_plane_release(struct rcar_du_plane *plane) { - struct rcar_du_device *rcdu = plane->dev; + struct rcar_du_group *rgrp = plane->group; if (plane->hwindex == -1) return; - mutex_lock(&rcdu->planes.lock); - rcdu->planes.free |= 1 << plane->hwindex; + mutex_lock(&rgrp->planes.lock); + rgrp->planes.free |= 1 << plane->hwindex; if (plane->format->planes == 2) - rcdu->planes.free |= 1 << ((plane->hwindex + 1) % 8); - mutex_unlock(&rcdu->planes.lock); + rgrp->planes.free |= 1 << ((plane->hwindex + 1) % 8); + mutex_unlock(&rgrp->planes.lock); plane->hwindex = -1; } void rcar_du_plane_update_base(struct rcar_du_plane *plane) { - struct rcar_du_device *rcdu = plane->dev; + struct rcar_du_group *rgrp = plane->group; unsigned int index = plane->hwindex; /* The Y position is expressed in raster line units and must be doubled @@ -111,18 +113,18 @@ void rcar_du_plane_update_base(struct rcar_du_plane *plane) * Similarly, for the second plane, NV12 and NV21 formats seem to * require a halved Y position value. */ - rcar_du_plane_write(rcdu, index, PnSPXR, plane->src_x); - rcar_du_plane_write(rcdu, index, PnSPYR, plane->src_y * + rcar_du_plane_write(rgrp, index, PnSPXR, plane->src_x); + rcar_du_plane_write(rgrp, index, PnSPYR, plane->src_y * (plane->format->bpp == 32 ? 2 : 1)); - rcar_du_plane_write(rcdu, index, PnDSA0R, plane->dma[0]); + rcar_du_plane_write(rgrp, index, PnDSA0R, plane->dma[0]); if (plane->format->planes == 2) { index = (index + 1) % 8; - rcar_du_plane_write(rcdu, index, PnSPXR, plane->src_x); - rcar_du_plane_write(rcdu, index, PnSPYR, plane->src_y * + rcar_du_plane_write(rgrp, index, PnSPXR, plane->src_x); + rcar_du_plane_write(rgrp, index, PnSPYR, plane->src_y * (plane->format->bpp == 16 ? 2 : 1) / 2); - rcar_du_plane_write(rcdu, index, PnDSA0R, plane->dma[1]); + rcar_du_plane_write(rgrp, index, PnDSA0R, plane->dma[1]); } } @@ -143,7 +145,7 @@ void rcar_du_plane_compute_base(struct rcar_du_plane *plane, static void rcar_du_plane_setup_mode(struct rcar_du_plane *plane, unsigned int index) { - struct rcar_du_device *rcdu = plane->dev; + struct rcar_du_group *rgrp = plane->group; u32 colorkey; u32 pnmr; @@ -157,9 +159,9 @@ static void rcar_du_plane_setup_mode(struct rcar_du_plane *plane, * enable alpha-blending regardless of the X bit value. */ if (plane->format->fourcc != DRM_FORMAT_XRGB1555) - rcar_du_plane_write(rcdu, index, PnALPHAR, PnALPHAR_ABIT_0); + rcar_du_plane_write(rgrp, index, PnALPHAR, PnALPHAR_ABIT_0); else - rcar_du_plane_write(rcdu, index, PnALPHAR, + rcar_du_plane_write(rgrp, index, PnALPHAR, PnALPHAR_ABIT_X | plane->alpha); pnmr = PnMR_BM_MD | plane->format->pnmr; @@ -175,14 +177,14 @@ static void rcar_du_plane_setup_mode(struct rcar_du_plane *plane, if (plane->format->fourcc == DRM_FORMAT_YUYV) pnmr |= PnMR_YCDF_YUYV; - rcar_du_plane_write(rcdu, index, PnMR, pnmr); + rcar_du_plane_write(rgrp, index, PnMR, pnmr); switch (plane->format->fourcc) { case DRM_FORMAT_RGB565: colorkey = ((plane->colorkey & 0xf80000) >> 8) | ((plane->colorkey & 0x00fc00) >> 5) | ((plane->colorkey & 0x0000f8) >> 3); - rcar_du_plane_write(rcdu, index, PnTC2R, colorkey); + rcar_du_plane_write(rgrp, index, PnTC2R, colorkey); break; case DRM_FORMAT_ARGB1555: @@ -190,12 +192,12 @@ static void rcar_du_plane_setup_mode(struct rcar_du_plane *plane, colorkey = ((plane->colorkey & 0xf80000) >> 9) | ((plane->colorkey & 0x00f800) >> 6) | ((plane->colorkey & 0x0000f8) >> 3); - rcar_du_plane_write(rcdu, index, PnTC2R, colorkey); + rcar_du_plane_write(rgrp, index, PnTC2R, colorkey); break; case DRM_FORMAT_XRGB8888: case DRM_FORMAT_ARGB8888: - rcar_du_plane_write(rcdu, index, PnTC3R, + rcar_du_plane_write(rgrp, index, PnTC3R, PnTC3R_CODE | (plane->colorkey & 0xffffff)); break; } @@ -204,7 +206,7 @@ static void rcar_du_plane_setup_mode(struct rcar_du_plane *plane, static void __rcar_du_plane_setup(struct rcar_du_plane *plane, unsigned int index) { - struct rcar_du_device *rcdu = plane->dev; + struct rcar_du_group *rgrp = plane->group; u32 ddcr2 = PnDDCR2_CODE; u32 ddcr4; u32 mwr; @@ -214,7 +216,7 @@ static void __rcar_du_plane_setup(struct rcar_du_plane *plane, * The data format is selected by the DDDF field in PnMR and the EDF * field in DDCR4. */ - ddcr4 = rcar_du_plane_read(rcdu, index, PnDDCR4); + ddcr4 = rcar_du_plane_read(rgrp, index, PnDDCR4); ddcr4 &= ~PnDDCR4_EDF_MASK; ddcr4 |= plane->format->edf | PnDDCR4_CODE; @@ -235,8 +237,8 @@ static void __rcar_du_plane_setup(struct rcar_du_plane *plane, } } - rcar_du_plane_write(rcdu, index, PnDDCR2, ddcr2); - rcar_du_plane_write(rcdu, index, PnDDCR4, ddcr4); + rcar_du_plane_write(rgrp, index, PnDDCR2, ddcr2); + rcar_du_plane_write(rgrp, index, PnDDCR4, ddcr4); /* Memory pitch (expressed in pixels) */ if (plane->format->planes == 2) @@ -244,19 +246,19 @@ static void __rcar_du_plane_setup(struct rcar_du_plane *plane, else mwr = plane->pitch * 8 / plane->format->bpp; - rcar_du_plane_write(rcdu, index, PnMWR, mwr); + rcar_du_plane_write(rgrp, index, PnMWR, mwr); /* Destination position and size */ - rcar_du_plane_write(rcdu, index, PnDSXR, plane->width); - rcar_du_plane_write(rcdu, index, PnDSYR, plane->height); - rcar_du_plane_write(rcdu, index, PnDPXR, plane->dst_x); - rcar_du_plane_write(rcdu, index, PnDPYR, plane->dst_y); + rcar_du_plane_write(rgrp, index, PnDSXR, plane->width); + rcar_du_plane_write(rgrp, index, PnDSYR, plane->height); + rcar_du_plane_write(rgrp, index, PnDPXR, plane->dst_x); + rcar_du_plane_write(rgrp, index, PnDPYR, plane->dst_y); /* Wrap-around and blinking, disabled */ - rcar_du_plane_write(rcdu, index, PnWASPR, 0); - rcar_du_plane_write(rcdu, index, PnWAMWR, 4095); - rcar_du_plane_write(rcdu, index, PnBTR, 0); - rcar_du_plane_write(rcdu, index, PnMLR, 0); + rcar_du_plane_write(rgrp, index, PnWASPR, 0); + rcar_du_plane_write(rgrp, index, PnWAMWR, 4095); + rcar_du_plane_write(rgrp, index, PnBTR, 0); + rcar_du_plane_write(rgrp, index, PnMLR, 0); } void rcar_du_plane_setup(struct rcar_du_plane *plane) @@ -276,7 +278,7 @@ rcar_du_plane_update(struct drm_plane *plane, struct drm_crtc *crtc, uint32_t src_w, uint32_t src_h) { struct rcar_du_plane *rplane = to_rcar_plane(plane); - struct rcar_du_device *rcdu = plane->dev->dev_private; + struct rcar_du_device *rcdu = rplane->group->dev; const struct rcar_du_format_info *format; unsigned int nplanes; int ret; @@ -319,26 +321,25 @@ rcar_du_plane_update(struct drm_plane *plane, struct drm_crtc *crtc, rcar_du_plane_compute_base(rplane, fb); rcar_du_plane_setup(rplane); - mutex_lock(&rcdu->planes.lock); + mutex_lock(&rplane->group->planes.lock); rplane->enabled = true; rcar_du_crtc_update_planes(rplane->crtc); - mutex_unlock(&rcdu->planes.lock); + mutex_unlock(&rplane->group->planes.lock); return 0; } static int rcar_du_plane_disable(struct drm_plane *plane) { - struct rcar_du_device *rcdu = plane->dev->dev_private; struct rcar_du_plane *rplane = to_rcar_plane(plane); if (!rplane->enabled) return 0; - mutex_lock(&rcdu->planes.lock); + mutex_lock(&rplane->group->planes.lock); rplane->enabled = false; rcar_du_crtc_update_planes(rplane->crtc); - mutex_unlock(&rcdu->planes.lock); + mutex_unlock(&rplane->group->planes.lock); rcar_du_plane_release(rplane); @@ -380,9 +381,7 @@ static void rcar_du_plane_set_colorkey(struct rcar_du_plane *plane, static void rcar_du_plane_set_zpos(struct rcar_du_plane *plane, unsigned int zpos) { - struct rcar_du_device *rcdu = plane->dev; - - mutex_lock(&rcdu->planes.lock); + mutex_lock(&plane->group->planes.lock); if (plane->zpos == zpos) goto done; @@ -393,21 +392,21 @@ static void rcar_du_plane_set_zpos(struct rcar_du_plane *plane, rcar_du_crtc_update_planes(plane->crtc); done: - mutex_unlock(&rcdu->planes.lock); + mutex_unlock(&plane->group->planes.lock); } static int rcar_du_plane_set_property(struct drm_plane *plane, struct drm_property *property, uint64_t value) { - struct rcar_du_device *rcdu = plane->dev->dev_private; struct rcar_du_plane *rplane = to_rcar_plane(plane); + struct rcar_du_group *rgrp = rplane->group; - if (property == rcdu->planes.alpha) + if (property == rgrp->planes.alpha) rcar_du_plane_set_alpha(rplane, value); - else if (property == rcdu->planes.colorkey) + else if (property == rgrp->planes.colorkey) rcar_du_plane_set_colorkey(rplane, value); - else if (property == rcdu->planes.zpos) + else if (property == rgrp->planes.zpos) rcar_du_plane_set_zpos(rplane, value); else return -EINVAL; @@ -435,37 +434,39 @@ static const uint32_t formats[] = { DRM_FORMAT_NV16, }; -int rcar_du_planes_init(struct rcar_du_device *rcdu) +int rcar_du_planes_init(struct rcar_du_group *rgrp) { + struct rcar_du_planes *planes = &rgrp->planes; + struct rcar_du_device *rcdu = rgrp->dev; unsigned int i; - mutex_init(&rcdu->planes.lock); - rcdu->planes.free = 0xff; + mutex_init(&planes->lock); + planes->free = 0xff; - rcdu->planes.alpha = + planes->alpha = drm_property_create_range(rcdu->ddev, 0, "alpha", 0, 255); - if (rcdu->planes.alpha == NULL) + if (planes->alpha == NULL) return -ENOMEM; /* The color key is expressed as an RGB888 triplet stored in a 32-bit * integer in XRGB8888 format. Bit 24 is used as a flag to disable (0) * or enable source color keying (1). */ - rcdu->planes.colorkey = + planes->colorkey = drm_property_create_range(rcdu->ddev, 0, "colorkey", 0, 0x01ffffff); - if (rcdu->planes.colorkey == NULL) + if (planes->colorkey == NULL) return -ENOMEM; - rcdu->planes.zpos = + planes->zpos = drm_property_create_range(rcdu->ddev, 0, "zpos", 1, 7); - if (rcdu->planes.zpos == NULL) + if (planes->zpos == NULL) return -ENOMEM; - for (i = 0; i < ARRAY_SIZE(rcdu->planes.planes); ++i) { - struct rcar_du_plane *plane = &rcdu->planes.planes[i]; + for (i = 0; i < ARRAY_SIZE(planes->planes); ++i) { + struct rcar_du_plane *plane = &planes->planes[i]; - plane->dev = rcdu; + plane->group = rgrp; plane->hwindex = -1; plane->alpha = 255; plane->colorkey = RCAR_DU_COLORKEY_NONE; @@ -475,8 +476,10 @@ int rcar_du_planes_init(struct rcar_du_device *rcdu) return 0; } -int rcar_du_planes_register(struct rcar_du_device *rcdu) +int rcar_du_planes_register(struct rcar_du_group *rgrp) { + struct rcar_du_planes *planes = &rgrp->planes; + struct rcar_du_device *rcdu = rgrp->dev; unsigned int i; int ret; @@ -487,7 +490,7 @@ int rcar_du_planes_register(struct rcar_du_device *rcdu) if (plane == NULL) return -ENOMEM; - plane->hwplane = &rcdu->planes.planes[i + 2]; + plane->hwplane = &planes->planes[i + 2]; plane->hwplane->zpos = 1; ret = drm_plane_init(rcdu->ddev, &plane->plane, @@ -498,12 +501,12 @@ int rcar_du_planes_register(struct rcar_du_device *rcdu) return ret; drm_object_attach_property(&plane->plane.base, - rcdu->planes.alpha, 255); + planes->alpha, 255); drm_object_attach_property(&plane->plane.base, - rcdu->planes.colorkey, + planes->colorkey, RCAR_DU_COLORKEY_NONE); drm_object_attach_property(&plane->plane.base, - rcdu->planes.zpos, 1); + planes->zpos, 1); } return 0; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.h b/drivers/gpu/drm/rcar-du/rcar_du_plane.h index bcf6f76f56a..f94f9ce8499 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_plane.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.h @@ -19,8 +19,8 @@ #include #include -struct rcar_du_device; struct rcar_du_format_info; +struct rcar_du_group; /* The RCAR DU has 8 hardware planes, shared between KMS planes and CRTCs. As * using KMS planes requires at least one of the CRTCs being enabled, no more @@ -33,7 +33,7 @@ struct rcar_du_format_info; #define RCAR_DU_NUM_SW_PLANES 9 struct rcar_du_plane { - struct rcar_du_device *dev; + struct rcar_du_group *group; struct drm_crtc *crtc; bool enabled; @@ -67,8 +67,8 @@ struct rcar_du_planes { struct drm_property *zpos; }; -int rcar_du_planes_init(struct rcar_du_device *rcdu); -int rcar_du_planes_register(struct rcar_du_device *rcdu); +int rcar_du_planes_init(struct rcar_du_group *rgrp); +int rcar_du_planes_register(struct rcar_du_group *rgrp); void rcar_du_plane_setup(struct rcar_du_plane *plane); void rcar_du_plane_update_base(struct rcar_du_plane *plane); -- cgit v1.2.3 From 990d07a5a9582f14b4d6d13cde5311d6c694096a Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sun, 16 Jun 2013 22:22:23 +0200 Subject: drm/rcar-du: Use dynamic number of CRTCs instead of CRTCs array size The rcar_du_device structure contains a field that stores the number of CRTCs, use it instead of the CRTCs array size. This prepares the driver to support a variable number of CRTCs. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 2 +- drivers/gpu/drm/rcar-du/rcar_du_kms.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index cdc363b6cd3..fd7cdda375b 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -105,7 +105,7 @@ static void rcar_du_preclose(struct drm_device *dev, struct drm_file *file) struct rcar_du_device *rcdu = dev->dev_private; unsigned int i; - for (i = 0; i < ARRAY_SIZE(rcdu->crtcs); ++i) + for (i = 0; i < rcdu->num_crtcs; ++i) rcar_du_crtc_cancel_page_flip(&rcdu->crtcs[i], file); } diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index c32e0f9d482..845bcb38486 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -197,7 +197,7 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) if (pdata->type == RCAR_DU_ENCODER_UNUSED) continue; - if (pdata->output >= ARRAY_SIZE(rcdu->crtcs)) { + if (pdata->output >= rcdu->num_crtcs) { dev_warn(rcdu->dev, "encoder %u references unexisting output %u, skipping\n", i, pdata->output); -- cgit v1.2.3 From 660bab56aa048c904a65ce6a8fc2eca2235eec6f Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sun, 16 Jun 2013 23:48:10 +0200 Subject: drm/rcar-du: Remove register definitions for the second channel Channels are accessed through a global channel memory offset, there's no need to define register addresses for the second channel. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_regs.h | 9 --------- 1 file changed, 9 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_regs.h b/drivers/gpu/drm/rcar-du/rcar_du_regs.h index 3aba27ffc06..195ed7e1756 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_regs.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_regs.h @@ -20,7 +20,6 @@ */ #define DSYSR 0x00000 /* display 1 */ -#define D2SYSR 0x30000 /* display 2 */ #define DSYSR_ILTS (1 << 29) #define DSYSR_DSEC (1 << 20) #define DSYSR_IUPD (1 << 16) @@ -35,7 +34,6 @@ #define DSYSR_SCM_INT_VIDEO (3 << 4) #define DSMR 0x00004 -#define D2SMR 0x30004 #define DSMR_VSPM (1 << 28) #define DSMR_ODPM (1 << 27) #define DSMR_DIPM_DISP (0 << 25) @@ -60,7 +58,6 @@ #define DSMR_CSY_MASK (3 << 6) #define DSSR 0x00008 -#define D2SSR 0x30008 #define DSSR_VC1FB_DSA0 (0 << 30) #define DSSR_VC1FB_DSA1 (1 << 30) #define DSSR_VC1FB_DSA2 (2 << 30) @@ -80,7 +77,6 @@ #define DSSR_ADC(n) (1 << ((n)-1)) #define DSRCR 0x0000c -#define D2SRCR 0x3000c #define DSRCR_TVCL (1 << 15) #define DSRCR_FRCL (1 << 14) #define DSRCR_VBCL (1 << 11) @@ -90,7 +86,6 @@ #define DSRCR_MASK 0x0000cbff #define DIER 0x00010 -#define D2IER 0x30010 #define DIER_TVE (1 << 15) #define DIER_FRE (1 << 14) #define DIER_VBE (1 << 11) @@ -114,7 +109,6 @@ #define DPPR_BPP32 (DPPR_BPP32_P1 | DPPR_BPP32_P2) /* plane1 & 2 */ #define DEFR 0x00020 -#define D2EFR 0x30020 #define DEFR_CODE (0x7773 << 16) #define DEFR_EXSL (1 << 12) #define DEFR_EXVL (1 << 11) @@ -137,12 +131,10 @@ #define DCPCR_DCE (1 << 0) #define DEFR2 0x00034 -#define D2EFR2 0x30034 #define DEFR2_CODE (0x7775 << 16) #define DEFR2_DEFE2G (1 << 0) #define DEFR3 0x00038 -#define D2EFR3 0x30038 #define DEFR3_CODE (0x7776 << 16) #define DEFR3_EVDA (1 << 14) #define DEFR3_EVDM_1 (1 << 12) @@ -153,7 +145,6 @@ #define DEFR3_DEFE3 (1 << 0) #define DEFR4 0x0003c -#define D2EFR4 0x3003c #define DEFR4_CODE (0x7777 << 16) #define DEFR4_LRUO (1 << 5) #define DEFR4_SPCE (1 << 4) -- cgit v1.2.3 From 2fd22dba23e3847651bffa1d9cc37acea05cc351 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 17 Jun 2013 00:11:05 +0200 Subject: drm/rcar-du: Move output routing configuration to group Output routing is configured in group registers, move the corresponding code from rcar_du_crtc.c to rcar_du_group.c. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 21 +-------------------- drivers/gpu/drm/rcar-du/rcar_du_group.c | 19 +++++++++++++++++++ drivers/gpu/drm/rcar-du/rcar_du_group.h | 2 +- 3 files changed, 21 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index 7784a3ba785..6a2b9590bb7 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -130,25 +130,6 @@ static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc) rcar_du_crtc_write(rcrtc, DEWR, mode->hdisplay); } -static void rcar_du_crtc_set_routing(struct rcar_du_crtc *rcrtc) -{ - struct rcar_du_device *rcdu = rcrtc->group->dev; - u32 dorcr = rcar_du_read(rcdu, DORCR); - - dorcr &= ~(DORCR_PG2T | DORCR_DK2S | DORCR_PG2D_MASK); - - /* Set the DU1 pins sources. Select CRTC 0 if explicitly requested and - * CRTC 1 in all other cases to avoid cloning CRTC 0 to DU0 and DU1 by - * default. - */ - if (rcrtc->outputs & (1 << 1) && rcrtc->index == 0) - dorcr |= DORCR_PG2D_DS1; - else - dorcr |= DORCR_PG2T | DORCR_DK2S | DORCR_PG2D_DS2; - - rcar_du_write(rcdu, DORCR, dorcr); -} - void rcar_du_crtc_route_output(struct drm_crtc *crtc, unsigned int output) { struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc); @@ -245,7 +226,7 @@ static void rcar_du_crtc_start(struct rcar_du_crtc *rcrtc) /* Configure display timings and output routing */ rcar_du_crtc_set_display_timing(rcrtc); - rcar_du_crtc_set_routing(rcrtc); + rcar_du_group_set_routing(rcrtc->group); mutex_lock(&rcrtc->group->planes.lock); rcrtc->plane->enabled = true; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.c b/drivers/gpu/drm/rcar-du/rcar_du_group.c index 625b9f44696..7e754515bba 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_group.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_group.c @@ -125,3 +125,22 @@ void rcar_du_group_restart(struct rcar_du_group *rgrp) __rcar_du_group_start_stop(rgrp, false); __rcar_du_group_start_stop(rgrp, true); } + +void rcar_du_group_set_routing(struct rcar_du_group *rgrp) +{ + struct rcar_du_crtc *crtc0 = &rgrp->dev->crtcs[rgrp->index * 2]; + u32 dorcr = rcar_du_group_read(rgrp, DORCR); + + dorcr &= ~(DORCR_PG2T | DORCR_DK2S | DORCR_PG2D_MASK); + + /* Set the DU1 pins sources. Select CRTC 0 if explicitly requested and + * CRTC 1 in all other cases to avoid cloning CRTC 0 to DU0 and DU1 by + * default. + */ + if (crtc0->outputs & (1 << 1)) + dorcr |= DORCR_PG2D_DS1; + else + dorcr |= DORCR_PG2T | DORCR_DK2S | DORCR_PG2D_DS2; + + rcar_du_group_write(rgrp, DORCR, dorcr); +} diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.h b/drivers/gpu/drm/rcar-du/rcar_du_group.h index 748331bbb8f..180c739812c 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_group.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_group.h @@ -42,6 +42,6 @@ int rcar_du_group_get(struct rcar_du_group *rgrp); void rcar_du_group_put(struct rcar_du_group *rgrp); void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start); void rcar_du_group_restart(struct rcar_du_group *rgrp); - +void rcar_du_group_set_routing(struct rcar_du_group *rgrp); #endif /* __RCAR_DU_GROUP_H__ */ -- cgit v1.2.3 From ef2d84bec6a02c4536cab1e0a8f13792ad86a7bc Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Fri, 14 Jun 2013 14:16:35 +0200 Subject: drm/rcar-du: Add support for the R8A7790 DU The DU revision in the R8A7790 SoC uses one IRQ and clock per CRTC. Add a corresponding entry in the module platform ID table. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 5 +++ drivers/gpu/drm/rcar-du/rcar_du_regs.h | 66 ++++++++++++++++++++++++++++++++-- 2 files changed, 68 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index fd7cdda375b..381dbad05e5 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -220,8 +220,13 @@ static const struct rcar_du_device_info rcar_du_r8a7779_info = { .features = 0, }; +static const struct rcar_du_device_info rcar_du_r8a7790_info = { + .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK, +}; + static const struct platform_device_id rcar_du_id_table[] = { { "rcar-du-r8a7779", (kernel_ulong_t)&rcar_du_r8a7779_info }, + { "rcar-du-r8a7790", (kernel_ulong_t)&rcar_du_r8a7790_info }, { } }; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_regs.h b/drivers/gpu/drm/rcar-du/rcar_du_regs.h index 195ed7e1756..f62a9f36041 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_regs.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_regs.h @@ -195,6 +195,68 @@ #define DEFR6_MLOS1 (1 << 2) #define DEFR6_DEFAULT (DEFR6_CODE | DEFR6_TCNE2) +/* ----------------------------------------------------------------------------- + * R8A7790-only Control Registers + */ + +#define DD1SSR 0x20008 +#define DD1SSR_TVR (1 << 15) +#define DD1SSR_FRM (1 << 14) +#define DD1SSR_BUF (1 << 12) +#define DD1SSR_VBK (1 << 11) +#define DD1SSR_RINT (1 << 9) +#define DD1SSR_HBK (1 << 8) +#define DD1SSR_ADC(n) (1 << ((n)-1)) + +#define DD1SRCR 0x2000c +#define DD1SRCR_TVR (1 << 15) +#define DD1SRCR_FRM (1 << 14) +#define DD1SRCR_BUF (1 << 12) +#define DD1SRCR_VBK (1 << 11) +#define DD1SRCR_RINT (1 << 9) +#define DD1SRCR_HBK (1 << 8) +#define DD1SRCR_ADC(n) (1 << ((n)-1)) + +#define DD1IER 0x20010 +#define DD1IER_TVR (1 << 15) +#define DD1IER_FRM (1 << 14) +#define DD1IER_BUF (1 << 12) +#define DD1IER_VBK (1 << 11) +#define DD1IER_RINT (1 << 9) +#define DD1IER_HBK (1 << 8) +#define DD1IER_ADC(n) (1 << ((n)-1)) + +#define DEFR8 0x20020 +#define DEFR8_CODE (0x7790 << 16) +#define DEFR8_VSCS (1 << 6) +#define DEFR8_DRGBS_DU(n) ((n) << 4) +#define DEFR8_DRGBS_MASK (3 << 4) +#define DEFR8_DEFE8 (1 << 0) + +#define DOFLR 0x20024 +#define DOFLR_CODE (0x7790 << 16) +#define DOFLR_HSYCFL1 (1 << 13) +#define DOFLR_VSYCFL1 (1 << 12) +#define DOFLR_ODDFL1 (1 << 11) +#define DOFLR_DISPFL1 (1 << 10) +#define DOFLR_CDEFL1 (1 << 9) +#define DOFLR_RGBFL1 (1 << 8) +#define DOFLR_HSYCFL0 (1 << 5) +#define DOFLR_VSYCFL0 (1 << 4) +#define DOFLR_ODDFL0 (1 << 3) +#define DOFLR_DISPFL0 (1 << 2) +#define DOFLR_CDEFL0 (1 << 1) +#define DOFLR_RGBFL0 (1 << 0) + +#define DIDSR 0x20028 +#define DIDSR_CODE (0x7790 << 16) +#define DIDSR_LCDS_DCLKIN(n) (0 << (8 + (n) * 2)) +#define DIDSR_LCDS_LVDS0(n) (2 << (8 + (n) * 2)) +#define DIDSR_LCDS_LVDS1(n) (3 << (8 + (n) * 2)) +#define DIDSR_LCDS_MASK(n) (3 << (8 + (n) * 2)) +#define DIDSR_PCDS_CLK(n, clk) (clk << ((n) * 2)) +#define DIDSR_PCDS_MASK(n) (3 << ((n) * 2)) + /* ----------------------------------------------------------------------------- * Display Timing Generation Registers */ @@ -364,12 +426,10 @@ * Display Capture Registers */ +#define DCMR 0x0c100 #define DCMWR 0x0c104 -#define DC2MWR 0x0c204 #define DCSAR 0x0c120 -#define DC2SAR 0x0c220 #define DCMLR 0x0c150 -#define DC2MLR 0x0c250 /* ----------------------------------------------------------------------------- * Color Palette Registers -- cgit v1.2.3 From 9e2d2de9e8107643ba50debc475fc966d3f77364 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Fri, 14 Jun 2013 20:52:52 +0200 Subject: drm/rcar-du: Fix buffer pitch alignment for R8A7790 DU The R8A7790 DU seems to require a 128 bytes pitch alignment, even though the documentation only mentions a 16 pixels alignement as for the R8A7779 DU. Make this configurable through a device flag. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 2 +- drivers/gpu/drm/rcar-du/rcar_du_drv.h | 1 + drivers/gpu/drm/rcar-du/rcar_du_kms.c | 17 ++++++++++++++--- 3 files changed, 16 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index 381dbad05e5..3cd98158926 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -221,7 +221,7 @@ static const struct rcar_du_device_info rcar_du_r8a7779_info = { }; static const struct rcar_du_device_info rcar_du_r8a7790_info = { - .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK, + .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK | RCAR_DU_FEATURE_ALIGN_128B, }; static const struct platform_device_id rcar_du_id_table[] = { diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index 5b57a2f9b52..072e28e0948 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h @@ -26,6 +26,7 @@ struct drm_device; struct rcar_du_device; #define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK (1 << 0) /* Per-CRTC IRQ and clock */ +#define RCAR_DU_FEATURE_ALIGN_128B (1 << 1) /* Align pitches to 128 bytes */ /* * struct rcar_du_device_info - DU model-specific information diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index 845bcb38486..418d902bc88 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -111,11 +111,18 @@ const struct rcar_du_format_info *rcar_du_format_info(u32 fourcc) int rcar_du_dumb_create(struct drm_file *file, struct drm_device *dev, struct drm_mode_create_dumb *args) { + struct rcar_du_device *rcdu = dev->dev_private; unsigned int min_pitch = DIV_ROUND_UP(args->width * args->bpp, 8); unsigned int align; - /* The pitch must be aligned to a 16 pixels boundary. */ - align = 16 * args->bpp / 8; + /* The R8A7779 DU requires a 16 pixels pitch alignment as documented, + * but the R8A7790 DU seems to require a 128 bytes pitch alignment. + */ + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_ALIGN_128B)) + align = 128; + else + align = 16 * args->bpp / 8; + args->pitch = roundup(max(args->pitch, min_pitch), align); return drm_gem_cma_dumb_create(file, dev, args); @@ -125,6 +132,7 @@ static struct drm_framebuffer * rcar_du_fb_create(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd2 *mode_cmd) { + struct rcar_du_device *rcdu = dev->dev_private; const struct rcar_du_format_info *format; unsigned int align; @@ -135,7 +143,10 @@ rcar_du_fb_create(struct drm_device *dev, struct drm_file *file_priv, return ERR_PTR(-EINVAL); } - align = 16 * format->bpp / 8; + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_ALIGN_128B)) + align = 128; + else + align = 16 * format->bpp / 8; if (mode_cmd->pitches[0] & (align - 1) || mode_cmd->pitches[0] >= 8192) { -- cgit v1.2.3 From a5f0ef593c4a130f5f5cd4cd506af946e32dd509 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 17 Jun 2013 00:29:25 +0200 Subject: drm/rcar-du: Add support for multiple groups The R8A7790 DU has 3 CRTCs, split in two groups. Support them. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 25 ++++++++++--------- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 2 ++ drivers/gpu/drm/rcar-du/rcar_du_drv.h | 6 +++-- drivers/gpu/drm/rcar-du/rcar_du_group.c | 4 +-- drivers/gpu/drm/rcar-du/rcar_du_group.h | 3 +++ drivers/gpu/drm/rcar-du/rcar_du_kms.c | 43 ++++++++++++++++++++++++--------- drivers/gpu/drm/rcar-du/rcar_du_plane.c | 6 +++-- drivers/gpu/drm/rcar-du/rcar_du_regs.h | 4 ++- 8 files changed, 63 insertions(+), 30 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index 6a2b9590bb7..a340224e08e 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -91,7 +91,6 @@ static void rcar_du_crtc_put(struct rcar_du_crtc *rcrtc) static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc) { const struct drm_display_mode *mode = &rcrtc->crtc.mode; - struct rcar_du_device *rcdu = rcrtc->group->dev; unsigned long clk; u32 value; u32 div; @@ -101,9 +100,9 @@ static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc) div = DIV_ROUND_CLOSEST(clk, mode->clock * 1000); div = clamp(div, 1U, 64U) - 1; - rcar_du_write(rcdu, rcrtc->index ? ESCR2 : ESCR, - ESCR_DCLKSEL_CLKS | div); - rcar_du_write(rcdu, rcrtc->index ? OTAR2 : OTAR, 0); + rcar_du_group_write(rcrtc->group, rcrtc->index % 2 ? ESCR2 : ESCR, + ESCR_DCLKSEL_CLKS | div); + rcar_du_group_write(rcrtc->group, rcrtc->index % 2 ? OTAR2 : OTAR, 0); /* Signal polarities */ value = ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? 0 : DSMR_VSL) @@ -143,7 +142,6 @@ void rcar_du_crtc_route_output(struct drm_crtc *crtc, unsigned int output) void rcar_du_crtc_update_planes(struct drm_crtc *crtc) { struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc); - struct rcar_du_device *rcdu = rcrtc->group->dev; struct rcar_du_plane *planes[RCAR_DU_NUM_HW_PLANES]; unsigned int num_planes = 0; unsigned int prio = 0; @@ -189,8 +187,8 @@ void rcar_du_crtc_update_planes(struct drm_crtc *crtc) /* Select display timing and dot clock generator 2 for planes associated * with superposition controller 2. */ - if (rcrtc->index) { - u32 value = rcar_du_read(rcdu, DPTSR); + if (rcrtc->index % 2) { + u32 value = rcar_du_group_read(rcrtc->group, DPTSR); /* The DPTSR register is updated when the display controller is * stopped. We thus need to restart the DU. Once again, sorry @@ -200,13 +198,14 @@ void rcar_du_crtc_update_planes(struct drm_crtc *crtc) * occur only if we need to break the pre-association. */ if (value != dptsr) { - rcar_du_write(rcdu, DPTSR, dptsr); + rcar_du_group_write(rcrtc->group, DPTSR, dptsr); if (rcrtc->group->used_crtcs) rcar_du_group_restart(rcrtc->group); } } - rcar_du_write(rcdu, rcrtc->index ? DS2PR : DS1PR, dspr); + rcar_du_group_write(rcrtc->group, rcrtc->index % 2 ? DS2PR : DS1PR, + dspr); } static void rcar_du_crtc_start(struct rcar_du_crtc *rcrtc) @@ -528,6 +527,10 @@ static const struct drm_crtc_funcs crtc_funcs = { int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int index) { + static const unsigned int mmio_offsets[] = { + DU0_REG_OFFSET, DU1_REG_OFFSET, DU2_REG_OFFSET + }; + struct rcar_du_device *rcdu = rgrp->dev; struct platform_device *pdev = to_platform_device(rcdu->dev); struct rcar_du_crtc *rcrtc = &rcdu->crtcs[index]; @@ -553,10 +556,10 @@ int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int index) } rcrtc->group = rgrp; - rcrtc->mmio_offset = index ? DISP2_REG_OFFSET : 0; + rcrtc->mmio_offset = mmio_offsets[index]; rcrtc->index = index; rcrtc->dpms = DRM_MODE_DPMS_OFF; - rcrtc->plane = &rgrp->planes.planes[index]; + rcrtc->plane = &rgrp->planes.planes[index % 2]; rcrtc->plane->crtc = crtc; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index 3cd98158926..8694a464886 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -218,10 +218,12 @@ static int rcar_du_remove(struct platform_device *pdev) static const struct rcar_du_device_info rcar_du_r8a7779_info = { .features = 0, + .num_crtcs = 2, }; static const struct rcar_du_device_info rcar_du_r8a7790_info = { .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK | RCAR_DU_FEATURE_ALIGN_128B, + .num_crtcs = 3, }; static const struct platform_device_id rcar_du_id_table[] = { diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index 072e28e0948..160e5eb8f29 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h @@ -31,9 +31,11 @@ struct rcar_du_device; /* * struct rcar_du_device_info - DU model-specific information * @features: device features (RCAR_DU_FEATURE_*) + * @num_crtcs: total number of CRTCs */ struct rcar_du_device_info { unsigned int features; + unsigned int num_crtcs; }; struct rcar_du_device { @@ -45,10 +47,10 @@ struct rcar_du_device { struct drm_device *ddev; - struct rcar_du_crtc crtcs[2]; + struct rcar_du_crtc crtcs[3]; unsigned int num_crtcs; - struct rcar_du_group group; + struct rcar_du_group groups[2]; }; static inline bool rcar_du_has(struct rcar_du_device *rcdu, diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.c b/drivers/gpu/drm/rcar-du/rcar_du_group.c index 7e754515bba..0eb106efffc 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_group.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_group.c @@ -33,12 +33,12 @@ #include "rcar_du_group.h" #include "rcar_du_regs.h" -static u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg) +u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg) { return rcar_du_read(rgrp->dev, rgrp->mmio_offset + reg); } -static void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data) +void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data) { rcar_du_write(rgrp->dev, rgrp->mmio_offset + reg, data); } diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.h b/drivers/gpu/drm/rcar-du/rcar_du_group.h index 180c739812c..4487e83fb2c 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_group.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_group.h @@ -38,6 +38,9 @@ struct rcar_du_group { struct rcar_du_planes planes; }; +u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg); +void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data); + int rcar_du_group_get(struct rcar_du_group *rgrp); void rcar_du_group_put(struct rcar_du_group *rgrp); void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start); diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index 418d902bc88..816963ca162 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -172,8 +172,13 @@ static const struct drm_mode_config_funcs rcar_du_mode_config_funcs = { int rcar_du_modeset_init(struct rcar_du_device *rcdu) { + static const unsigned int mmio_offsets[] = { + DU0_REG_OFFSET, DU2_REG_OFFSET + }; + struct drm_device *dev = rcdu->ddev; struct drm_encoder *encoder; + unsigned int num_groups; unsigned int i; int ret; @@ -185,22 +190,33 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) rcdu->ddev->mode_config.max_height = 2047; rcdu->ddev->mode_config.funcs = &rcar_du_mode_config_funcs; - rcdu->group.dev = rcdu; - rcdu->group.index = 0; - rcdu->group.used_crtcs = 0; + rcdu->num_crtcs = rcdu->info->num_crtcs; + + /* Initialize the groups. */ + num_groups = DIV_ROUND_UP(rcdu->num_crtcs, 2); + + for (i = 0; i < num_groups; ++i) { + struct rcar_du_group *rgrp = &rcdu->groups[i]; - ret = rcar_du_planes_init(&rcdu->group); - if (ret < 0) - return ret; + rgrp->dev = rcdu; + rgrp->mmio_offset = mmio_offsets[i]; + rgrp->index = i; - for (i = 0; i < ARRAY_SIZE(rcdu->crtcs); ++i) { - ret = rcar_du_crtc_create(&rcdu->group, i); + ret = rcar_du_planes_init(rgrp); if (ret < 0) return ret; } - rcdu->num_crtcs = i; + /* Create the CRTCs. */ + for (i = 0; i < rcdu->num_crtcs; ++i) { + struct rcar_du_group *rgrp = &rcdu->groups[i / 2]; + + ret = rcar_du_crtc_create(rgrp, i); + if (ret < 0) + return ret; + } + /* Initialize the encoders. */ for (i = 0; i < rcdu->pdata->num_encoders; ++i) { const struct rcar_du_encoder_data *pdata = &rcdu->pdata->encoders[i]; @@ -229,9 +245,12 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) encoder->possible_clones = 1 << 0; } - ret = rcar_du_planes_register(&rcdu->group); - if (ret < 0) - return ret; + /* Now that the CRTCs have been initialized register the planes. */ + for (i = 0; i < num_groups; ++i) { + ret = rcar_du_planes_register(&rcdu->groups[i]); + if (ret < 0) + return ret; + } drm_kms_helper_poll_init(rcdu->ddev); diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/rcar-du/rcar_du_plane.c index 1e9cf7c92f8..53000644733 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c @@ -480,9 +480,12 @@ int rcar_du_planes_register(struct rcar_du_group *rgrp) { struct rcar_du_planes *planes = &rgrp->planes; struct rcar_du_device *rcdu = rgrp->dev; + unsigned int crtcs; unsigned int i; int ret; + crtcs = ((1 << rcdu->num_crtcs) - 1) & (3 << (2 * rgrp->index)); + for (i = 0; i < RCAR_DU_NUM_KMS_PLANES; ++i) { struct rcar_du_kms_plane *plane; @@ -493,8 +496,7 @@ int rcar_du_planes_register(struct rcar_du_group *rgrp) plane->hwplane = &planes->planes[i + 2]; plane->hwplane->zpos = 1; - ret = drm_plane_init(rcdu->ddev, &plane->plane, - (1 << rcdu->num_crtcs) - 1, + ret = drm_plane_init(rcdu->ddev, &plane->plane, crtcs, &rcar_du_plane_funcs, formats, ARRAY_SIZE(formats), false); if (ret < 0) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_regs.h b/drivers/gpu/drm/rcar-du/rcar_du_regs.h index f62a9f36041..73f7347f740 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_regs.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_regs.h @@ -13,7 +13,9 @@ #ifndef __RCAR_DU_REGS_H__ #define __RCAR_DU_REGS_H__ -#define DISP2_REG_OFFSET 0x30000 +#define DU0_REG_OFFSET 0x00000 +#define DU1_REG_OFFSET 0x30000 +#define DU2_REG_OFFSET 0x40000 /* ----------------------------------------------------------------------------- * Display Control Registers -- cgit v1.2.3 From 38b62fb3808e6b57dbd7728e897e4f7674d1c998 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sat, 15 Jun 2013 02:40:57 +0200 Subject: drm/rcar-du: Add support for DEFR8 register The R8A7790 DU has a new extended function control register. Support it. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 3 ++- drivers/gpu/drm/rcar-du/rcar_du_drv.h | 1 + drivers/gpu/drm/rcar-du/rcar_du_group.c | 2 ++ 3 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index 8694a464886..f8785357b59 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -222,7 +222,8 @@ static const struct rcar_du_device_info rcar_du_r8a7779_info = { }; static const struct rcar_du_device_info rcar_du_r8a7790_info = { - .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK | RCAR_DU_FEATURE_ALIGN_128B, + .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK | RCAR_DU_FEATURE_ALIGN_128B + | RCAR_DU_FEATURE_DEFR8, .num_crtcs = 3, }; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index 160e5eb8f29..70c335f5113 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h @@ -27,6 +27,7 @@ struct rcar_du_device; #define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK (1 << 0) /* Per-CRTC IRQ and clock */ #define RCAR_DU_FEATURE_ALIGN_128B (1 << 1) /* Align pitches to 128 bytes */ +#define RCAR_DU_FEATURE_DEFR8 (1 << 2) /* Has DEFR8 register */ /* * struct rcar_du_device_info - DU model-specific information diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.c b/drivers/gpu/drm/rcar-du/rcar_du_group.c index 0eb106efffc..f3ba0ca845e 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_group.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_group.c @@ -51,6 +51,8 @@ static void rcar_du_group_setup(struct rcar_du_group *rgrp) rcar_du_group_write(rgrp, DEFR3, DEFR3_CODE | DEFR3_DEFE3); rcar_du_group_write(rgrp, DEFR4, DEFR4_CODE); rcar_du_group_write(rgrp, DEFR5, DEFR5_CODE | DEFR5_DEFE5); + if (rcar_du_has(rgrp->dev, RCAR_DU_FEATURE_DEFR8)) + rcar_du_group_write(rgrp, DEFR8, DEFR8_CODE | DEFR8_DEFE8); /* Use DS1PR and DS2PR to configure planes priorities and connects the * superposition 0 to DU0 pins. DU1 pins will be configured dynamically. -- cgit v1.2.3 From ef67a902e946ad1ef51040cf287a45cc4714e2b5 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 17 Jun 2013 03:13:11 +0200 Subject: drm/rcar-du: Rework output routing support Split the output routing specification between SoC-internal data, specified in the rcar_du_device_info structure, and board data, passed through platform data. The DU has 5 possible outputs (DPAD0/1, LVDS0/1, TCON). SoC-internal output routing data specify which output are valid, which CRTCs can be connected to the valid outputs, and the type of in-SoC encoder for the output. Platform data then specifies external encoders and the output they are connected to. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 6 ++++-- drivers/gpu/drm/rcar-du/rcar_du_crtc.h | 4 +++- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 30 ++++++++++++++++++++++++++++++ drivers/gpu/drm/rcar-du/rcar_du_drv.h | 16 ++++++++++++++++ drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 26 +++++++++++++++++++++----- drivers/gpu/drm/rcar-du/rcar_du_encoder.h | 5 +++-- drivers/gpu/drm/rcar-du/rcar_du_group.c | 8 ++++---- drivers/gpu/drm/rcar-du/rcar_du_kms.c | 17 +++++++++++------ include/linux/platform_data/rcar-du.h | 17 +++++++++++++++-- 9 files changed, 107 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index a340224e08e..680606ef11d 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -129,14 +129,16 @@ static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc) rcar_du_crtc_write(rcrtc, DEWR, mode->hdisplay); } -void rcar_du_crtc_route_output(struct drm_crtc *crtc, unsigned int output) +void rcar_du_crtc_route_output(struct drm_crtc *crtc, + enum rcar_du_output output) { struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc); + struct rcar_du_device *rcdu = rcrtc->group->dev; /* Store the route from the CRTC output to the DU output. The DU will be * configured when starting the CRTC. */ - rcrtc->outputs |= 1 << output; + rcrtc->outputs |= BIT(output); } void rcar_du_crtc_update_planes(struct drm_crtc *crtc) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h index 542a7feceb2..39a983d13af 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h @@ -15,6 +15,7 @@ #define __RCAR_DU_CRTC_H__ #include +#include #include #include @@ -45,7 +46,8 @@ void rcar_du_crtc_cancel_page_flip(struct rcar_du_crtc *rcrtc, void rcar_du_crtc_suspend(struct rcar_du_crtc *rcrtc); void rcar_du_crtc_resume(struct rcar_du_crtc *rcrtc); -void rcar_du_crtc_route_output(struct drm_crtc *crtc, unsigned int output); +void rcar_du_crtc_route_output(struct drm_crtc *crtc, + enum rcar_du_output output); void rcar_du_crtc_update_planes(struct drm_crtc *crtc); #endif /* __RCAR_DU_CRTC_H__ */ diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index f8785357b59..4bc39973449 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -219,12 +219,42 @@ static int rcar_du_remove(struct platform_device *pdev) static const struct rcar_du_device_info rcar_du_r8a7779_info = { .features = 0, .num_crtcs = 2, + .routes = { + /* R8A7779 has two RGB outputs and one (currently unsupported) + * TCON output. + */ + [RCAR_DU_OUTPUT_DPAD0] = { + .possible_crtcs = BIT(0), + .encoder_type = DRM_MODE_ENCODER_NONE, + }, + [RCAR_DU_OUTPUT_DPAD1] = { + .possible_crtcs = BIT(1) | BIT(0), + .encoder_type = DRM_MODE_ENCODER_NONE, + }, + }, }; static const struct rcar_du_device_info rcar_du_r8a7790_info = { .features = RCAR_DU_FEATURE_CRTC_IRQ_CLOCK | RCAR_DU_FEATURE_ALIGN_128B | RCAR_DU_FEATURE_DEFR8, .num_crtcs = 3, + .routes = { + /* R8A7790 has one RGB output, two LVDS outputs and one + * (currently unsupported) TCON output. + */ + [RCAR_DU_OUTPUT_DPAD0] = { + .possible_crtcs = BIT(2) | BIT(1) | BIT(0), + .encoder_type = DRM_MODE_ENCODER_NONE, + }, + [RCAR_DU_OUTPUT_LVDS0] = { + .possible_crtcs = BIT(0), + .encoder_type = DRM_MODE_ENCODER_LVDS, + }, + [RCAR_DU_OUTPUT_LVDS1] = { + .possible_crtcs = BIT(2) | BIT(1), + .encoder_type = DRM_MODE_ENCODER_LVDS, + }, + }, }; static const struct platform_device_id rcar_du_id_table[] = { diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index 70c335f5113..d5243f49390 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h @@ -29,14 +29,30 @@ struct rcar_du_device; #define RCAR_DU_FEATURE_ALIGN_128B (1 << 1) /* Align pitches to 128 bytes */ #define RCAR_DU_FEATURE_DEFR8 (1 << 2) /* Has DEFR8 register */ +/* + * struct rcar_du_output_routing - Output routing specification + * @possible_crtcs: bitmask of possible CRTCs for the output + * @encoder_type: DRM type of the internal encoder associated with the output + * + * The DU has 5 possible outputs (DPAD0/1, LVDS0/1, TCON). Output routing data + * specify the valid SoC outputs, which CRTCs can drive the output, and the type + * of in-SoC encoder for the output. + */ +struct rcar_du_output_routing { + unsigned int possible_crtcs; + unsigned int encoder_type; +}; + /* * struct rcar_du_device_info - DU model-specific information * @features: device features (RCAR_DU_FEATURE_*) * @num_crtcs: total number of CRTCs + * @routes: array of CRTC to output routes, indexed by output (RCAR_DU_OUTPUT_*) */ struct rcar_du_device_info { unsigned int features; unsigned int num_crtcs; + struct rcar_du_output_routing routes[RCAR_DU_OUTPUT_MAX]; }; struct rcar_du_device { diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c index 0d0375c7ee4..2aac28d21f8 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c @@ -115,10 +115,12 @@ static const struct drm_encoder_funcs encoder_funcs = { }; int rcar_du_encoder_init(struct rcar_du_device *rcdu, - enum rcar_du_encoder_type type, unsigned int output, + enum rcar_du_encoder_type type, + enum rcar_du_output output, const struct rcar_du_encoder_data *data) { struct rcar_du_encoder *renc; + unsigned int encoder_type; int ret; renc = devm_kzalloc(rcdu->dev, sizeof(*renc), GFP_KERNEL); @@ -127,19 +129,33 @@ int rcar_du_encoder_init(struct rcar_du_device *rcdu, renc->output = output; + switch (type) { + case RCAR_DU_ENCODER_VGA: + encoder_type = DRM_MODE_ENCODER_DAC; + break; + case RCAR_DU_ENCODER_LVDS: + encoder_type = DRM_MODE_ENCODER_LVDS; + break; + case RCAR_DU_ENCODER_NONE: + default: + /* No external encoder, use the internal encoder type. */ + encoder_type = rcdu->info->routes[output].encoder_type; + break; + } + ret = drm_encoder_init(rcdu->ddev, &renc->encoder, &encoder_funcs, - type); + encoder_type); if (ret < 0) return ret; drm_encoder_helper_add(&renc->encoder, &encoder_helper_funcs); - switch (type) { - case RCAR_DU_ENCODER_LVDS: + switch (encoder_type) { + case DRM_MODE_ENCODER_LVDS: return rcar_du_lvds_connector_init(rcdu, renc, &data->connector.lvds.panel); - case RCAR_DU_ENCODER_VGA: + case DRM_MODE_ENCODER_DAC: return rcar_du_vga_connector_init(rcdu, renc); default: diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.h b/drivers/gpu/drm/rcar-du/rcar_du_encoder.h index 08cde129389..2310416ea21 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.h @@ -22,7 +22,7 @@ struct rcar_du_device; struct rcar_du_encoder { struct drm_encoder encoder; - unsigned int output; + enum rcar_du_output output; }; #define to_rcar_encoder(e) \ @@ -40,7 +40,8 @@ struct drm_encoder * rcar_du_connector_best_encoder(struct drm_connector *connector); int rcar_du_encoder_init(struct rcar_du_device *rcdu, - enum rcar_du_encoder_type type, unsigned int output, + enum rcar_du_encoder_type type, + enum rcar_du_output output, const struct rcar_du_encoder_data *data); #endif /* __RCAR_DU_ENCODER_H__ */ diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.c b/drivers/gpu/drm/rcar-du/rcar_du_group.c index f3ba0ca845e..9df6fb635c9 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_group.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_group.c @@ -135,11 +135,11 @@ void rcar_du_group_set_routing(struct rcar_du_group *rgrp) dorcr &= ~(DORCR_PG2T | DORCR_DK2S | DORCR_PG2D_MASK); - /* Set the DU1 pins sources. Select CRTC 0 if explicitly requested and - * CRTC 1 in all other cases to avoid cloning CRTC 0 to DU0 and DU1 by - * default. + /* Set the DPAD1 pins sources. Select CRTC 0 if explicitly requested and + * CRTC 1 in all other cases to avoid cloning CRTC 0 to DPAD0 and DPAD1 + * by default. */ - if (crtc0->outputs & (1 << 1)) + if (crtc0->outputs & BIT(RCAR_DU_OUTPUT_DPAD1)) dorcr |= DORCR_PG2D_DS1; else dorcr |= DORCR_PG2T | DORCR_DK2S | DORCR_PG2D_DS2; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index 816963ca162..2b92e68a09f 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -220,11 +220,14 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) for (i = 0; i < rcdu->pdata->num_encoders; ++i) { const struct rcar_du_encoder_data *pdata = &rcdu->pdata->encoders[i]; + const struct rcar_du_output_routing *route = + &rcdu->info->routes[pdata->output]; if (pdata->type == RCAR_DU_ENCODER_UNUSED) continue; - if (pdata->output >= rcdu->num_crtcs) { + if (pdata->output >= RCAR_DU_OUTPUT_MAX || + route->possible_crtcs == 0) { dev_warn(rcdu->dev, "encoder %u references unexisting output %u, skipping\n", i, pdata->output); @@ -234,15 +237,17 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) rcar_du_encoder_init(rcdu, pdata->type, pdata->output, pdata); } - /* Set the possible CRTCs and possible clones. All encoders can be - * driven by the CRTC associated with the output they're connected to, - * as well as by CRTC 0. + /* Set the possible CRTCs and possible clones. There's always at least + * one way for all encoders to clone each other, set all bits in the + * possible clones field. */ list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { struct rcar_du_encoder *renc = to_rcar_encoder(encoder); + const struct rcar_du_output_routing *route = + &rcdu->info->routes[renc->output]; - encoder->possible_crtcs = (1 << 0) | (1 << renc->output); - encoder->possible_clones = 1 << 0; + encoder->possible_crtcs = route->possible_crtcs; + encoder->possible_clones = (1 << rcdu->pdata->num_encoders) - 1; } /* Now that the CRTCs have been initialized register the planes. */ diff --git a/include/linux/platform_data/rcar-du.h b/include/linux/platform_data/rcar-du.h index 64cd8635e6e..1a2e9901a22 100644 --- a/include/linux/platform_data/rcar-du.h +++ b/include/linux/platform_data/rcar-du.h @@ -16,8 +16,18 @@ #include +enum rcar_du_output { + RCAR_DU_OUTPUT_DPAD0, + RCAR_DU_OUTPUT_DPAD1, + RCAR_DU_OUTPUT_LVDS0, + RCAR_DU_OUTPUT_LVDS1, + RCAR_DU_OUTPUT_TCON, + RCAR_DU_OUTPUT_MAX, +}; + enum rcar_du_encoder_type { RCAR_DU_ENCODER_UNUSED = 0, + RCAR_DU_ENCODER_NONE, RCAR_DU_ENCODER_VGA, RCAR_DU_ENCODER_LVDS, }; @@ -39,13 +49,16 @@ struct rcar_du_connector_vga_data { /* * struct rcar_du_encoder_data - Encoder platform data * @type: the encoder type (RCAR_DU_ENCODER_*) - * @output: the DU output the connector is connected to + * @output: the DU output the connector is connected to (RCAR_DU_OUTPUT_*) * @connector.lvds: platform data for LVDS connectors * @connector.vga: platform data for VGA connectors + * + * Encoder platform data describes an on-board encoder, its associated DU SoC + * output, and the connector. */ struct rcar_du_encoder_data { enum rcar_du_encoder_type type; - unsigned int output; + enum rcar_du_output output; union { struct rcar_du_connector_lvds_data lvds; -- cgit v1.2.3 From 7cbc05cb518304b746bea00bc7c0b005217bcaf7 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 17 Jun 2013 03:20:08 +0200 Subject: drm/rcar-du: Configure RGB output routing to DPAD0 The R8A7790 DU variant has a single RGB output called DPAD0 that can be fed with the output of DU0, DU1 or DU2. Making the routing configurable. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 5 ++++ drivers/gpu/drm/rcar-du/rcar_du_drv.h | 2 ++ drivers/gpu/drm/rcar-du/rcar_du_group.c | 45 ++++++++++++++++++++++++++++++--- drivers/gpu/drm/rcar-du/rcar_du_group.h | 2 +- 4 files changed, 50 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index 680606ef11d..245800ddd1a 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -139,6 +139,11 @@ void rcar_du_crtc_route_output(struct drm_crtc *crtc, * configured when starting the CRTC. */ rcrtc->outputs |= BIT(output); + + /* Store RGB routing to DPAD0 for R8A7790. */ + if (rcar_du_has(rcdu, RCAR_DU_FEATURE_DEFR8) && + output == RCAR_DU_OUTPUT_DPAD0) + rcdu->dpad0_source = rcrtc->index; } void rcar_du_crtc_update_planes(struct drm_crtc *crtc) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index d5243f49390..924f5e08f06 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h @@ -68,6 +68,8 @@ struct rcar_du_device { unsigned int num_crtcs; struct rcar_du_group groups[2]; + + unsigned int dpad0_source; }; static inline bool rcar_du_has(struct rcar_du_device *rcdu, diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.c b/drivers/gpu/drm/rcar-du/rcar_du_group.c index 9df6fb635c9..eb53cd97e8c 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_group.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_group.c @@ -27,6 +27,7 @@ * counterpart in the DU documentation, that models those semi-global resources. */ +#include #include #include "rcar_du_drv.h" @@ -43,6 +44,22 @@ void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data) rcar_du_write(rgrp->dev, rgrp->mmio_offset + reg, data); } +static void rcar_du_group_setup_defr8(struct rcar_du_group *rgrp) +{ + u32 defr8 = DEFR8_CODE | DEFR8_DEFE8; + + if (!rcar_du_has(rgrp->dev, RCAR_DU_FEATURE_DEFR8)) + return; + + /* The DEFR8 register for the first group also controls RGB output + * routing to DPAD0 + */ + if (rgrp->index == 0) + defr8 |= DEFR8_DRGBS_DU(rgrp->dev->dpad0_source); + + rcar_du_group_write(rgrp, DEFR8, defr8); +} + static void rcar_du_group_setup(struct rcar_du_group *rgrp) { /* Enable extended features */ @@ -51,8 +68,8 @@ static void rcar_du_group_setup(struct rcar_du_group *rgrp) rcar_du_group_write(rgrp, DEFR3, DEFR3_CODE | DEFR3_DEFE3); rcar_du_group_write(rgrp, DEFR4, DEFR4_CODE); rcar_du_group_write(rgrp, DEFR5, DEFR5_CODE | DEFR5_DEFE5); - if (rcar_du_has(rgrp->dev, RCAR_DU_FEATURE_DEFR8)) - rcar_du_group_write(rgrp, DEFR8, DEFR8_CODE | DEFR8_DEFE8); + + rcar_du_group_setup_defr8(rgrp); /* Use DS1PR and DS2PR to configure planes priorities and connects the * superposition 0 to DU0 pins. DU1 pins will be configured dynamically. @@ -128,7 +145,27 @@ void rcar_du_group_restart(struct rcar_du_group *rgrp) __rcar_du_group_start_stop(rgrp, true); } -void rcar_du_group_set_routing(struct rcar_du_group *rgrp) +static int rcar_du_set_dpad0_routing(struct rcar_du_device *rcdu) +{ + int ret; + + /* RGB output routing to DPAD0 is configured in the DEFR8 register of + * the first group. As this function can be called with the DU0 and DU1 + * CRTCs disabled, we need to enable the first group clock before + * accessing the register. + */ + ret = clk_prepare_enable(rcdu->crtcs[0].clock); + if (ret < 0) + return ret; + + rcar_du_group_setup_defr8(&rcdu->groups[0]); + + clk_disable_unprepare(rcdu->crtcs[0].clock); + + return 0; +} + +int rcar_du_group_set_routing(struct rcar_du_group *rgrp) { struct rcar_du_crtc *crtc0 = &rgrp->dev->crtcs[rgrp->index * 2]; u32 dorcr = rcar_du_group_read(rgrp, DORCR); @@ -145,4 +182,6 @@ void rcar_du_group_set_routing(struct rcar_du_group *rgrp) dorcr |= DORCR_PG2T | DORCR_DK2S | DORCR_PG2D_DS2; rcar_du_group_write(rgrp, DORCR, dorcr); + + return rcar_du_set_dpad0_routing(rgrp->dev); } diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.h b/drivers/gpu/drm/rcar-du/rcar_du_group.h index 4487e83fb2c..5025930972e 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_group.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_group.h @@ -45,6 +45,6 @@ int rcar_du_group_get(struct rcar_du_group *rgrp); void rcar_du_group_put(struct rcar_du_group *rgrp); void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start); void rcar_du_group_restart(struct rcar_du_group *rgrp); -void rcar_du_group_set_routing(struct rcar_du_group *rgrp); +int rcar_du_group_set_routing(struct rcar_du_group *rgrp); #endif /* __RCAR_DU_GROUP_H__ */ -- cgit v1.2.3 From 90374b5c25c9f04895c52a1e7a2468ee8dac525b Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 17 Jun 2013 13:48:27 +0200 Subject: drm/rcar-du: Add internal LVDS encoder support The R8A7790 includes two internal LVDS encoders. Support them in the DU driver. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/Kconfig | 7 ++ drivers/gpu/drm/rcar-du/Makefile | 4 +- drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 2 - drivers/gpu/drm/rcar-du/rcar_du_crtc.h | 2 + drivers/gpu/drm/rcar-du/rcar_du_drv.c | 2 + drivers/gpu/drm/rcar-du/rcar_du_drv.h | 4 + drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 38 ++++++ drivers/gpu/drm/rcar-du/rcar_du_encoder.h | 2 + drivers/gpu/drm/rcar-du/rcar_du_kms.c | 5 + drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c | 196 ++++++++++++++++++++++++++++++ drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.h | 46 +++++++ drivers/gpu/drm/rcar-du/rcar_lvds_regs.h | 69 +++++++++++ 12 files changed, 374 insertions(+), 3 deletions(-) create mode 100644 drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c create mode 100644 drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.h create mode 100644 drivers/gpu/drm/rcar-du/rcar_lvds_regs.h diff --git a/drivers/gpu/drm/rcar-du/Kconfig b/drivers/gpu/drm/rcar-du/Kconfig index 72887df8dd7..c590cd9dca0 100644 --- a/drivers/gpu/drm/rcar-du/Kconfig +++ b/drivers/gpu/drm/rcar-du/Kconfig @@ -7,3 +7,10 @@ config DRM_RCAR_DU help Choose this option if you have an R-Car chipset. If M is selected the module will be called rcar-du-drm. + +config DRM_RCAR_LVDS + bool "R-Car DU LVDS Encoder Support" + depends on DRM_RCAR_DU + help + Enable support the R-Car Display Unit embedded LVDS encoders + (currently only on R8A7790). diff --git a/drivers/gpu/drm/rcar-du/Makefile b/drivers/gpu/drm/rcar-du/Makefile index b9b5e666fbb..12b8d447783 100644 --- a/drivers/gpu/drm/rcar-du/Makefile +++ b/drivers/gpu/drm/rcar-du/Makefile @@ -7,4 +7,6 @@ rcar-du-drm-y := rcar_du_crtc.o \ rcar_du_plane.o \ rcar_du_vgacon.o -obj-$(CONFIG_DRM_RCAR_DU) += rcar-du-drm.o +rcar-du-drm-$(CONFIG_DRM_RCAR_LVDS) += rcar_du_lvdsenc.o + +obj-$(CONFIG_DRM_RCAR_DU) += rcar-du-drm.o diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index 245800ddd1a..33df7a58314 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -26,8 +26,6 @@ #include "rcar_du_plane.h" #include "rcar_du_regs.h" -#define to_rcar_crtc(c) container_of(c, struct rcar_du_crtc, crtc) - static u32 rcar_du_crtc_read(struct rcar_du_crtc *rcrtc, u32 reg) { struct rcar_du_device *rcdu = rcrtc->group->dev; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h index 39a983d13af..43e7575c700 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.h @@ -39,6 +39,8 @@ struct rcar_du_crtc { struct rcar_du_plane *plane; }; +#define to_rcar_crtc(c) container_of(c, struct rcar_du_crtc, crtc) + int rcar_du_crtc_create(struct rcar_du_group *rgrp, unsigned int index); void rcar_du_crtc_enable_vblank(struct rcar_du_crtc *rcrtc, bool enable); void rcar_du_crtc_cancel_page_flip(struct rcar_du_crtc *rcrtc, diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index 4bc39973449..38a8b52624c 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -232,6 +232,7 @@ static const struct rcar_du_device_info rcar_du_r8a7779_info = { .encoder_type = DRM_MODE_ENCODER_NONE, }, }, + .num_lvds = 0, }; static const struct rcar_du_device_info rcar_du_r8a7790_info = { @@ -255,6 +256,7 @@ static const struct rcar_du_device_info rcar_du_r8a7790_info = { .encoder_type = DRM_MODE_ENCODER_LVDS, }, }, + .num_lvds = 2, }; static const struct platform_device_id rcar_du_id_table[] = { diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index 924f5e08f06..050d71c1f78 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h @@ -24,6 +24,7 @@ struct clk; struct device; struct drm_device; struct rcar_du_device; +struct rcar_du_lvdsenc; #define RCAR_DU_FEATURE_CRTC_IRQ_CLOCK (1 << 0) /* Per-CRTC IRQ and clock */ #define RCAR_DU_FEATURE_ALIGN_128B (1 << 1) /* Align pitches to 128 bytes */ @@ -48,11 +49,13 @@ struct rcar_du_output_routing { * @features: device features (RCAR_DU_FEATURE_*) * @num_crtcs: total number of CRTCs * @routes: array of CRTC to output routes, indexed by output (RCAR_DU_OUTPUT_*) + * @num_lvds: number of internal LVDS encoders */ struct rcar_du_device_info { unsigned int features; unsigned int num_crtcs; struct rcar_du_output_routing routes[RCAR_DU_OUTPUT_MAX]; + unsigned int num_lvds; }; struct rcar_du_device { @@ -70,6 +73,7 @@ struct rcar_du_device { struct rcar_du_group groups[2]; unsigned int dpad0_source; + struct rcar_du_lvdsenc *lvds[2]; }; static inline bool rcar_du_has(struct rcar_du_device *rcdu, diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c index 2aac28d21f8..3daa7a168dc 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c @@ -11,6 +11,8 @@ * (at your option) any later version. */ +#include + #include #include #include @@ -19,6 +21,7 @@ #include "rcar_du_encoder.h" #include "rcar_du_kms.h" #include "rcar_du_lvdscon.h" +#include "rcar_du_lvdsenc.h" #include "rcar_du_vgacon.h" /* ----------------------------------------------------------------------------- @@ -39,12 +42,17 @@ rcar_du_connector_best_encoder(struct drm_connector *connector) static void rcar_du_encoder_dpms(struct drm_encoder *encoder, int mode) { + struct rcar_du_encoder *renc = to_rcar_encoder(encoder); + + if (renc->lvds) + rcar_du_lvdsenc_dpms(renc->lvds, encoder->crtc, mode); } static bool rcar_du_encoder_mode_fixup(struct drm_encoder *encoder, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { + struct rcar_du_encoder *renc = to_rcar_encoder(encoder); const struct drm_display_mode *panel_mode; struct drm_device *dev = encoder->dev; struct drm_connector *connector; @@ -82,15 +90,32 @@ static bool rcar_du_encoder_mode_fixup(struct drm_encoder *encoder, /* The flat panel mode is fixed, just copy it to the adjusted mode. */ drm_mode_copy(adjusted_mode, panel_mode); + /* The internal LVDS encoder has a clock frequency operating range of + * 30MHz to 150MHz. Clamp the clock accordingly. + */ + if (renc->lvds) + adjusted_mode->clock = clamp(adjusted_mode->clock, + 30000, 150000); + return true; } static void rcar_du_encoder_mode_prepare(struct drm_encoder *encoder) { + struct rcar_du_encoder *renc = to_rcar_encoder(encoder); + + if (renc->lvds) + rcar_du_lvdsenc_dpms(renc->lvds, encoder->crtc, + DRM_MODE_DPMS_OFF); } static void rcar_du_encoder_mode_commit(struct drm_encoder *encoder) { + struct rcar_du_encoder *renc = to_rcar_encoder(encoder); + + if (renc->lvds) + rcar_du_lvdsenc_dpms(renc->lvds, encoder->crtc, + DRM_MODE_DPMS_ON); } static void rcar_du_encoder_mode_set(struct drm_encoder *encoder, @@ -129,6 +154,19 @@ int rcar_du_encoder_init(struct rcar_du_device *rcdu, renc->output = output; + switch (output) { + case RCAR_DU_OUTPUT_LVDS0: + renc->lvds = rcdu->lvds[0]; + break; + + case RCAR_DU_OUTPUT_LVDS1: + renc->lvds = rcdu->lvds[1]; + break; + + default: + break; + } + switch (type) { case RCAR_DU_ENCODER_VGA: encoder_type = DRM_MODE_ENCODER_DAC; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.h b/drivers/gpu/drm/rcar-du/rcar_du_encoder.h index 2310416ea21..0e5a65e45d0 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.h @@ -19,10 +19,12 @@ #include struct rcar_du_device; +struct rcar_du_lvdsenc; struct rcar_du_encoder { struct drm_encoder encoder; enum rcar_du_output output; + struct rcar_du_lvdsenc *lvds; }; #define to_rcar_encoder(e) \ diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index 2b92e68a09f..cc71b1a0c3c 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -21,6 +21,7 @@ #include "rcar_du_drv.h" #include "rcar_du_encoder.h" #include "rcar_du_kms.h" +#include "rcar_du_lvdsenc.h" #include "rcar_du_regs.h" /* ----------------------------------------------------------------------------- @@ -217,6 +218,10 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) } /* Initialize the encoders. */ + ret = rcar_du_lvdsenc_init(rcdu); + if (ret < 0) + return ret; + for (i = 0; i < rcdu->pdata->num_encoders; ++i) { const struct rcar_du_encoder_data *pdata = &rcdu->pdata->encoders[i]; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c b/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c new file mode 100644 index 00000000000..a0f6a178192 --- /dev/null +++ b/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.c @@ -0,0 +1,196 @@ +/* + * rcar_du_lvdsenc.c -- R-Car Display Unit LVDS Encoder + * + * Copyright (C) 2013 Renesas Corporation + * + * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#include +#include +#include +#include +#include + +#include "rcar_du_drv.h" +#include "rcar_du_encoder.h" +#include "rcar_du_lvdsenc.h" +#include "rcar_lvds_regs.h" + +struct rcar_du_lvdsenc { + struct rcar_du_device *dev; + + unsigned int index; + void __iomem *mmio; + struct clk *clock; + int dpms; + + enum rcar_lvds_input input; +}; + +static void rcar_lvds_write(struct rcar_du_lvdsenc *lvds, u32 reg, u32 data) +{ + iowrite32(data, lvds->mmio + reg); +} + +static int rcar_du_lvdsenc_start(struct rcar_du_lvdsenc *lvds, + struct rcar_du_crtc *rcrtc) +{ + const struct drm_display_mode *mode = &rcrtc->crtc.mode; + unsigned int freq = mode->clock; + u32 lvdcr0; + u32 pllcr; + int ret; + + if (lvds->dpms == DRM_MODE_DPMS_ON) + return 0; + + ret = clk_prepare_enable(lvds->clock); + if (ret < 0) + return ret; + + /* PLL clock configuration */ + if (freq <= 38000) + pllcr = LVDPLLCR_CEEN | LVDPLLCR_COSEL | LVDPLLCR_PLLDLYCNT_38M; + else if (freq <= 60000) + pllcr = LVDPLLCR_CEEN | LVDPLLCR_COSEL | LVDPLLCR_PLLDLYCNT_60M; + else if (freq <= 121000) + pllcr = LVDPLLCR_CEEN | LVDPLLCR_COSEL | LVDPLLCR_PLLDLYCNT_121M; + else + pllcr = LVDPLLCR_PLLDLYCNT_150M; + + rcar_lvds_write(lvds, LVDPLLCR, pllcr); + + /* Hardcode the channels and control signals routing for now. + * + * HSYNC -> CTRL0 + * VSYNC -> CTRL1 + * DISP -> CTRL2 + * 0 -> CTRL3 + * + * Channels 1 and 3 are switched on ES1. + */ + rcar_lvds_write(lvds, LVDCTRCR, LVDCTRCR_CTR3SEL_ZERO | + LVDCTRCR_CTR2SEL_DISP | LVDCTRCR_CTR1SEL_VSYNC | + LVDCTRCR_CTR0SEL_HSYNC); + rcar_lvds_write(lvds, LVDCHCR, + LVDCHCR_CHSEL_CH(0, 0) | LVDCHCR_CHSEL_CH(1, 3) | + LVDCHCR_CHSEL_CH(2, 2) | LVDCHCR_CHSEL_CH(3, 1)); + + /* Select the input, hardcode mode 0, enable LVDS operation and turn + * bias circuitry on. + */ + lvdcr0 = LVDCR0_BEN | LVDCR0_LVEN; + if (rcrtc->index == 2) + lvdcr0 |= LVDCR0_DUSEL; + rcar_lvds_write(lvds, LVDCR0, lvdcr0); + + /* Turn all the channels on. */ + rcar_lvds_write(lvds, LVDCR1, LVDCR1_CHSTBY(3) | LVDCR1_CHSTBY(2) | + LVDCR1_CHSTBY(1) | LVDCR1_CHSTBY(0) | LVDCR1_CLKSTBY); + + /* Turn the PLL on, wait for the startup delay, and turn the output + * on. + */ + lvdcr0 |= LVDCR0_PLLEN; + rcar_lvds_write(lvds, LVDCR0, lvdcr0); + + usleep_range(100, 150); + + lvdcr0 |= LVDCR0_LVRES; + rcar_lvds_write(lvds, LVDCR0, lvdcr0); + + lvds->dpms = DRM_MODE_DPMS_ON; + return 0; +} + +static void rcar_du_lvdsenc_stop(struct rcar_du_lvdsenc *lvds) +{ + if (lvds->dpms == DRM_MODE_DPMS_OFF) + return; + + rcar_lvds_write(lvds, LVDCR0, 0); + rcar_lvds_write(lvds, LVDCR1, 0); + + clk_disable_unprepare(lvds->clock); + + lvds->dpms = DRM_MODE_DPMS_OFF; +} + +int rcar_du_lvdsenc_dpms(struct rcar_du_lvdsenc *lvds, + struct drm_crtc *crtc, int mode) +{ + if (mode == DRM_MODE_DPMS_OFF) { + rcar_du_lvdsenc_stop(lvds); + return 0; + } else if (crtc) { + struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc); + return rcar_du_lvdsenc_start(lvds, rcrtc); + } else + return -EINVAL; +} + +static int rcar_du_lvdsenc_get_resources(struct rcar_du_lvdsenc *lvds, + struct platform_device *pdev) +{ + struct resource *mem; + char name[7]; + + sprintf(name, "lvds.%u", lvds->index); + + mem = platform_get_resource_byname(pdev, IORESOURCE_MEM, name); + if (mem == NULL) { + dev_err(&pdev->dev, "failed to get memory resource for %s\n", + name); + return -EINVAL; + } + + lvds->mmio = devm_ioremap_resource(&pdev->dev, mem); + if (lvds->mmio == NULL) { + dev_err(&pdev->dev, "failed to remap memory resource for %s\n", + name); + return -ENOMEM; + } + + lvds->clock = devm_clk_get(&pdev->dev, name); + if (IS_ERR(lvds->clock)) { + dev_err(&pdev->dev, "failed to get clock for %s\n", name); + return PTR_ERR(lvds->clock); + } + + return 0; +} + +int rcar_du_lvdsenc_init(struct rcar_du_device *rcdu) +{ + struct platform_device *pdev = to_platform_device(rcdu->dev); + struct rcar_du_lvdsenc *lvds; + unsigned int i; + int ret; + + for (i = 0; i < rcdu->info->num_lvds; ++i) { + lvds = devm_kzalloc(&pdev->dev, sizeof(*lvds), GFP_KERNEL); + if (lvds == NULL) { + dev_err(&pdev->dev, "failed to allocate private data\n"); + return -ENOMEM; + } + + lvds->dev = rcdu; + lvds->index = i; + lvds->input = i ? RCAR_LVDS_INPUT_DU1 : RCAR_LVDS_INPUT_DU0; + lvds->dpms = DRM_MODE_DPMS_OFF; + + ret = rcar_du_lvdsenc_get_resources(lvds, pdev); + if (ret < 0) + return ret; + + rcdu->lvds[i] = lvds; + } + + return 0; +} diff --git a/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.h b/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.h new file mode 100644 index 00000000000..7051c6de19a --- /dev/null +++ b/drivers/gpu/drm/rcar-du/rcar_du_lvdsenc.h @@ -0,0 +1,46 @@ +/* + * rcar_du_lvdsenc.h -- R-Car Display Unit LVDS Encoder + * + * Copyright (C) 2013 Renesas Corporation + * + * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef __RCAR_DU_LVDSENC_H__ +#define __RCAR_DU_LVDSENC_H__ + +#include +#include +#include + +struct rcar_drm_crtc; +struct rcar_du_lvdsenc; + +enum rcar_lvds_input { + RCAR_LVDS_INPUT_DU0, + RCAR_LVDS_INPUT_DU1, + RCAR_LVDS_INPUT_DU2, +}; + +#if IS_ENABLED(CONFIG_DRM_RCAR_LVDS) +int rcar_du_lvdsenc_init(struct rcar_du_device *rcdu); +int rcar_du_lvdsenc_dpms(struct rcar_du_lvdsenc *lvds, + struct drm_crtc *crtc, int mode); +#else +static inline int rcar_du_lvdsenc_init(struct rcar_du_device *rcdu) +{ + return 0; +} +static inline int rcar_du_lvdsenc_dpms(struct rcar_du_lvdsenc *lvds, + struct drm_crtc *crtc, int mode) +{ + return 0; +} +#endif + +#endif /* __RCAR_DU_LVDSENC_H__ */ diff --git a/drivers/gpu/drm/rcar-du/rcar_lvds_regs.h b/drivers/gpu/drm/rcar-du/rcar_lvds_regs.h new file mode 100644 index 00000000000..77cf9289ab6 --- /dev/null +++ b/drivers/gpu/drm/rcar-du/rcar_lvds_regs.h @@ -0,0 +1,69 @@ +/* + * rcar_lvds_regs.h -- R-Car LVDS Interface Registers Definitions + * + * Copyright (C) 2013 Renesas Electronics Corporation + * + * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation. + */ + +#ifndef __RCAR_LVDS_REGS_H__ +#define __RCAR_LVDS_REGS_H__ + +#define LVDCR0 0x0000 +#define LVDCR0_DUSEL (1 << 15) +#define LVDCR0_DMD (1 << 12) +#define LVDCR0_LVMD_MASK (0xf << 8) +#define LVDCR0_LVMD_SHIFT 8 +#define LVDCR0_PLLEN (1 << 4) +#define LVDCR0_BEN (1 << 2) +#define LVDCR0_LVEN (1 << 1) +#define LVDCR0_LVRES (1 << 0) + +#define LVDCR1 0x0004 +#define LVDCR1_CKSEL (1 << 15) +#define LVDCR1_CHSTBY(n) (3 << (2 + (n) * 2)) +#define LVDCR1_CLKSTBY (3 << 0) + +#define LVDPLLCR 0x0008 +#define LVDPLLCR_CEEN (1 << 14) +#define LVDPLLCR_FBEN (1 << 13) +#define LVDPLLCR_COSEL (1 << 12) +#define LVDPLLCR_PLLDLYCNT_150M (0x1bf << 0) +#define LVDPLLCR_PLLDLYCNT_121M (0x22c << 0) +#define LVDPLLCR_PLLDLYCNT_60M (0x77b << 0) +#define LVDPLLCR_PLLDLYCNT_38M (0x69a << 0) +#define LVDPLLCR_PLLDLYCNT_MASK (0x7ff << 0) + +#define LVDCTRCR 0x000c +#define LVDCTRCR_CTR3SEL_ZERO (0 << 12) +#define LVDCTRCR_CTR3SEL_ODD (1 << 12) +#define LVDCTRCR_CTR3SEL_CDE (2 << 12) +#define LVDCTRCR_CTR3SEL_MASK (7 << 12) +#define LVDCTRCR_CTR2SEL_DISP (0 << 8) +#define LVDCTRCR_CTR2SEL_ODD (1 << 8) +#define LVDCTRCR_CTR2SEL_CDE (2 << 8) +#define LVDCTRCR_CTR2SEL_HSYNC (3 << 8) +#define LVDCTRCR_CTR2SEL_VSYNC (4 << 8) +#define LVDCTRCR_CTR2SEL_MASK (7 << 8) +#define LVDCTRCR_CTR1SEL_VSYNC (0 << 4) +#define LVDCTRCR_CTR1SEL_DISP (1 << 4) +#define LVDCTRCR_CTR1SEL_ODD (2 << 4) +#define LVDCTRCR_CTR1SEL_CDE (3 << 4) +#define LVDCTRCR_CTR1SEL_HSYNC (4 << 4) +#define LVDCTRCR_CTR1SEL_MASK (7 << 4) +#define LVDCTRCR_CTR0SEL_HSYNC (0 << 0) +#define LVDCTRCR_CTR0SEL_VSYNC (1 << 0) +#define LVDCTRCR_CTR0SEL_DISP (2 << 0) +#define LVDCTRCR_CTR0SEL_ODD (3 << 0) +#define LVDCTRCR_CTR0SEL_CDE (4 << 0) +#define LVDCTRCR_CTR0SEL_MASK (7 << 0) + +#define LVDCHCR 0x0010 +#define LVDCHCR_CHSEL_CH(n, c) ((((c) - (n)) & 3) << ((n) * 4)) +#define LVDCHCR_CHSEL_MASK(n) (3 << ((n) * 4)) + +#endif /* __RCAR_LVDS_REGS_H__ */ -- cgit v1.2.3 From 3864c6f446f3c2ebbeca1d45e28452682706c1aa Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Thu, 14 Mar 2013 22:45:22 +0100 Subject: drm/rcar-du: Add FBDEV emulation support Use the FB CMA helpers to implement FBDEV emulation support. The VGA connector status must be reported as connector_status_connected instead of connector_status_unknown to be usable by the emulation layer. Signed-off-by: Laurent Pinchart --- drivers/gpu/drm/rcar-du/rcar_du_drv.c | 14 +++++++++++++ drivers/gpu/drm/rcar-du/rcar_du_drv.h | 2 ++ drivers/gpu/drm/rcar-du/rcar_du_kms.c | 36 +++++++++++++++++++++++++------- drivers/gpu/drm/rcar-du/rcar_du_vgacon.c | 2 +- 4 files changed, 45 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/rcar-du/rcar_du_drv.c index 38a8b52624c..e113352bacd 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c @@ -21,6 +21,7 @@ #include #include +#include #include #include "rcar_du_crtc.h" @@ -34,6 +35,11 @@ static int rcar_du_unload(struct drm_device *dev) { + struct rcar_du_device *rcdu = dev->dev_private; + + if (rcdu->fbdev) + drm_fbdev_cma_fini(rcdu->fbdev); + drm_kms_helper_poll_fini(dev); drm_mode_config_cleanup(dev); drm_vblank_cleanup(dev); @@ -109,6 +115,13 @@ static void rcar_du_preclose(struct drm_device *dev, struct drm_file *file) rcar_du_crtc_cancel_page_flip(&rcdu->crtcs[i], file); } +static void rcar_du_lastclose(struct drm_device *dev) +{ + struct rcar_du_device *rcdu = dev->dev_private; + + drm_fbdev_cma_restore_mode(rcdu->fbdev); +} + static int rcar_du_enable_vblank(struct drm_device *dev, int crtc) { struct rcar_du_device *rcdu = dev->dev_private; @@ -145,6 +158,7 @@ static struct drm_driver rcar_du_driver = { .load = rcar_du_load, .unload = rcar_du_unload, .preclose = rcar_du_preclose, + .lastclose = rcar_du_lastclose, .get_vblank_counter = drm_vblank_count, .enable_vblank = rcar_du_enable_vblank, .disable_vblank = rcar_du_disable_vblank, diff --git a/drivers/gpu/drm/rcar-du/rcar_du_drv.h b/drivers/gpu/drm/rcar-du/rcar_du_drv.h index 050d71c1f78..65d2d636b00 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_drv.h +++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.h @@ -23,6 +23,7 @@ struct clk; struct device; struct drm_device; +struct drm_fbdev_cma; struct rcar_du_device; struct rcar_du_lvdsenc; @@ -66,6 +67,7 @@ struct rcar_du_device { void __iomem *mmio; struct drm_device *ddev; + struct drm_fbdev_cma *fbdev; struct rcar_du_crtc crtcs[3]; unsigned int num_crtcs; diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index cc71b1a0c3c..b31ac080c4a 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -167,8 +167,16 @@ rcar_du_fb_create(struct drm_device *dev, struct drm_file *file_priv, return drm_fb_cma_create(dev, file_priv, mode_cmd); } +static void rcar_du_output_poll_changed(struct drm_device *dev) +{ + struct rcar_du_device *rcdu = dev->dev_private; + + drm_fbdev_cma_hotplug_event(rcdu->fbdev); +} + static const struct drm_mode_config_funcs rcar_du_mode_config_funcs = { .fb_create = rcar_du_fb_create, + .output_poll_changed = rcar_du_output_poll_changed, }; int rcar_du_modeset_init(struct rcar_du_device *rcdu) @@ -179,17 +187,18 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) struct drm_device *dev = rcdu->ddev; struct drm_encoder *encoder; + struct drm_fbdev_cma *fbdev; unsigned int num_groups; unsigned int i; int ret; - drm_mode_config_init(rcdu->ddev); + drm_mode_config_init(dev); - rcdu->ddev->mode_config.min_width = 0; - rcdu->ddev->mode_config.min_height = 0; - rcdu->ddev->mode_config.max_width = 4095; - rcdu->ddev->mode_config.max_height = 2047; - rcdu->ddev->mode_config.funcs = &rcar_du_mode_config_funcs; + dev->mode_config.min_width = 0; + dev->mode_config.min_height = 0; + dev->mode_config.max_width = 4095; + dev->mode_config.max_height = 2047; + dev->mode_config.funcs = &rcar_du_mode_config_funcs; rcdu->num_crtcs = rcdu->info->num_crtcs; @@ -262,9 +271,20 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu) return ret; } - drm_kms_helper_poll_init(rcdu->ddev); + drm_kms_helper_poll_init(dev); + + drm_helper_disable_unused_functions(dev); + + fbdev = drm_fbdev_cma_init(dev, 32, dev->mode_config.num_crtc, + dev->mode_config.num_connector); + if (IS_ERR(fbdev)) + return PTR_ERR(fbdev); + +#ifndef CONFIG_FRAMEBUFFER_CONSOLE + drm_fbdev_cma_restore_mode(fbdev); +#endif - drm_helper_disable_unused_functions(rcdu->ddev); + rcdu->fbdev = fbdev; return 0; } diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c b/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c index 36105db9bda..41d563adfea 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_vgacon.c @@ -46,7 +46,7 @@ static void rcar_du_vga_connector_destroy(struct drm_connector *connector) static enum drm_connector_status rcar_du_vga_connector_detect(struct drm_connector *connector, bool force) { - return connector_status_unknown; + return connector_status_connected; } static const struct drm_connector_funcs connector_funcs = { -- cgit v1.2.3